查询词典 do by sb.

To keep sb/sth alive, or safe from harm or danger 使继续存活;保护;保全 VN ~ sb/sth The society was set up to preserve endangered species from extinction.

成立这个协会是为了保护濒危物种不致灭绝。 reserve有主动去防止，去保存，去储备的意思 conserve有抵御外界损害力量的意思，环形抵御，全方位因为构词成分是con－ preserve也是被动的保有某种状态，侧重于状态的无变化

Lay one's 'hands on sb/sth find sb/sth 找到某人: The book's here somewhere, but I can't lay my hands on it just now.

那本书就放在这儿的什麽地方，但我现在就是找不到。

Leave sb in charge of 交由...照看 put sb in charge of

新教材第五单元的阅读课件，感觉充实，不妨一试

Para 11 leave sb./sth. alone =let sb.

sth alone随他去，不干涉，不管，让其独自待着

Sb. lend sth. to sb.

某人把某物借给某人 4。

Lend sb. sth.=lend sth. to sb.

借给某人某物 15。

Lend sth. to sb.= lend sb. sth.

请你借给我你的车用一下好吗？

Let sb down= make sb disappointed.

使某人失望

Let sb in on sth :v, let sb know about sth

这是个秘密，不过我会让你知道的一个秘密？

The autumn 18 years ago, shen Xiaoting of 24 years old is carrying simple baggage, come to this city, she goes along railroad boundless ground ah go, walk along courage to expand the heart all the time full to the brim, call to Zhang Zhen:" I came, in railroad mouth, if you not take sb in I, I am forced to let Azrael take sb in I."

18年前的秋天，24岁的沈小婷拎着简单的行李，来到这座城市，她沿着铁路漫无边际地走啊走啊，一直走到勇气把内心膨胀得满满当当，给张震打电话："我来了，在铁道口，假如你不收留我，我只好让死神收留我了。"

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。