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A second important point is that the wing on the downstroke must either rotate bodily into a more leading-edge-down position (ie: negative angle of attack), or the wing membrane itself must be flexible enough to twist into this new position.

第二个重要的一点是，机翼就必须要么downstroke旋转身体成为一个更领先式的立场，或翼膜本身必须具有足够的灵活性以扭到这个新职位。

As the seemingly endless period of political campaigning in the United States will soon draw to a close, we on the left must access the damage; but more importantly, we must understand the means by which the damage was dealt; the "representative democratic" system.

正如似乎无休止的政治运动在美国很快将提请结束时，我们就必须进入左边的损失，但更重要的是，我们必须理解的手段损害处理；的"代表的民主制度"。

If you say , you must stretch your lips back; for you must round your lips forward; for you drop your jaw down; for you will drop your jaw far down and back; for bring your lips back and drop your jaw a bit; for drop your jaw for the ah part of the sound and pull it back up for the ee part; and for round the lips, drop the jaw and pull back up into .

如果你说，你必须把嘴唇伸展回去；呢，你必须让自己的嘴唇变园；而对于，你需要把下颚放低；对你需要把你的下颚放低再复原；对于，把你的嘴唇收回去，并且稍微放低下颚；呢，就要在ah这个部分放低下颚然后在ee这个部分复原；对于嘴唇成圆形，放低下颚再拉回来发出这个音。

Used false ceiling material varieties, specifications, colours and grassroots construction, shall be fixed design methodology, and the current standard; Drop keel no distortion, distortion, false wooden keel or the need for fire wood processing vessel analysis, the installation of a reliable keel, around flattened; light lamps can be directly working in reinforced keel, the weight of more than 2 kilograms of lamps or ceiling fan can not borrow drop keel, a separate hanger with LBAC structure liaison metal materials, synthetic materials, PVC ceiling must be installed on the Xidingdeng Long skeleton, the structure must do waterproofing wood fire.

吊顶 吊顶所用材料的品种、规格、颜色以及基层构造、固定方法应按设计要求，并符合现行标准；吊顶龙骨不得扭曲、变形，木龙骨或木质吊顶必须进行防火处理，吊杆顺直，龙骨安装牢固可靠，四周平直；轻型灯具可直接吊在加固龙骨上，重量大于2公斤的灯具或吊扇不得借用吊顶龙骨，应另设吊钩与土建结构联络，金属材料、合成材料、PVC吊顶上的吸顶灯安装必须有龙骨架，木结构必须做防水防火处理。

If must be in of the bed upper part holds the lantern, suggest your installation absorbs dome light, and must not install tumbledown droplight.

假如一定要在床的正上方装灯，建议您安装吸顶灯，而千万不要安装摇摇欲坠的吊灯。

Now we must look ahead, we must "put out into the deep", trusting in Christ's words: Duc in altum!

现在我们必须向前看，我们必须「划向深处」，信赖基督的话：撒网捕鱼！。。。

You must be a very bad l earner ; or else you must be going to be a very bad teacher.

你一定是很不善于学习，要不然就是教你的人很不会教。

At last, according to the above discussions, the author draws a picture of the leadership for the 21 century. On all accounts, the author concludes that the efficiency of leadership must be understanding of reality, and there're some commonness as well as individuality. As an educational leader, he must recognize the character of leadership in ecospecies, pay special attention to the staffers, shift the organizational function, focus on his inner development, and achieve the state of "Unleadership".

由此，笔者认为：领导有效性是一种具体环境下领导绩效的展现，它既有共性，也有个性，它既表现在宏观层面，又体现在一些细微方面；从追求未来领导走向成功的角度出发，未来领导者应该注意领导工作的"生态性"，重视"人"的问题，有效转变机构职能，关注自身发展，求得一种领导者"隐退"的境界。

Requires : it p must be a valid iterator of *this. elem must point to an element contained in list x.

要求： pos 必须是*this 的有效迭代器。elem 必须指向链表 x 中某个元素。

I must decline as inapplicable to myself any share in the personal emoluments which may be indispensably included in a permanent provision for the executive department, and must accordingly pray that the pecuniary estimates for the station in which I am placed may during my continuance in it be limited to such actual expenditures as the public good may be thought to require.

我必须放弃我个人因为担任总统职位所获得的薪水；同时，我必须因此而祈祷：为我的职位所支付的金钱预算，在我的任职之内，被尽量限制到一个对公众福利有利的程度上。【拥有最高权力的公仆，不求经济回报

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！