查询词典 if

At a luxury hotel in Japan, for example, if you try to tip anyone from the wait staff at a top restaurant to the hotel concierge, your gesture will be perceived as a rude and flagrant show of wealth. On the other hand, if you skimp on tipping at any restaurant in the United States or to a concierge who has helped fulfill multiple requests, you probably won't be welcome again.

比如在日本的一家豪华宾馆里，如果你给任何一位顶级餐馆的侍者或宾馆门房服务员小费，那么会被认为是一种粗鲁摆阔的行为；可是在美国任何一家餐馆，如果在用餐或者对帮助你完成了多个任务的服务生没给足小费的话，下次也许就不会受到欢迎了。

If you think about AB 32, to roll back our greenhouse gases to the 1990 level, or if it is the Million Solar Roof Initiative, the Low-Carbon Fuel Standard, the Renewable Energy Standard, the Green Building Initiative, the Hydrogen Highway, and the list goes on and on of the kind of things that we have done.

这里我们会想到AB32政策会把二氧化碳的排放降低到1990年的水平；或者"百万太阳能屋顶"鼓励政策，"低炭燃料"标准，可持续能源标准，"绿色建筑"倡议，"氢燃料高速公路"等等等等。

Using the main result, we also obtain a simple criterion to check if a given C(superscript *)-algebra A is Abelian, that is, A is Abelian if and only for any two positive elements a, b∈A, there is a'∈A such that ab=ba'.

利用文中的主要结论，还得到了判断C-代数A是交换一个简单条件，即A是交换的当且仅当对A中的任何两个正元a，b存在a'∈A使得ab=ba'。

Using the main result, we also obtain a simple criterion to check if a given mathrm C^*-algebra A is Abelian, that is, A is Abelian if and only for any two positive elements a, bin A, there is a'in A such that ab=ba'.

利用文中的主要结论，还得到了判断 mathrm C^*-代数 A 是交换一个简单条件，即 A 是交换的当且仅当对 A 中的任何两个正元 a， b 存在 a'in A 使得 ab=ba'。

Suppose G is a finite group, then QG is a semisimple Q-algera, obviously ZG is a Z-order of QG,we denote the maximal Z-order by ?.If G is not abelian, it is not an easy thing to determine г; if G is an abelian group, then QG is isomorphic to the direct sum of a finite number of number fields, and r is the direct sum of these rings of algebraic integers of those number fields, but which elements of QG belong to r is not clear.

设G是一个有限群，那么QG是一个半单代数，ZG是QG的一个Z-序，设Γ是QG的一个极大Z-序，当G是一个非交换群时，Γ的求解是困难的问题；当G是一个交换群时，QG同构于有限多个数域的直和，Γ相应的就是各数域代数整数环的直和，但Γ具体是QG中那些元素不清楚。

If you have the ability, if you have such a demand ...

如果你有这样的能力，如果你有这样的需求。。。

Even those who should abjure their errors were condemned, if men, to die by the sword; if women, to be buried alive.

一个基督徒即使放弃了这些"异端"，仍是要被定罪的，男的用刀杀，女的活埋。

There they were placed in work if able-bodied, or in almshouses if not.

在那里，他们被安排工作，如果身体健全的，或如果不是救济院。

Therefore, if such sorts of abnormalities are inevitable if human cloning have to go on.

因此，如果这种类型的异常是不可避免的如果克隆人类必须继续下去。

There is something exasperating about this movement, something abortively melancholy about it, as if it had been written in lava, as if it had the color of lead and milk mixed.

西尔维斯特的脑袋偏向一侧，像个拍卖商。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷