您要查找的是不是：
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- Maybe I can act as a messenger for you. 也许我能给你当信差。
- A trained dog can act as a guide to a blind person. 一条经过训练的狗能够充任盲人的向导。
- He acted as a middleman in discussions between the two companies. 他在两公司的谈判中作中间人。
- Fix wages and lack of promotion act as a disincentive to employee. 工资固定又无晋升机会遏制了雇员的积极性。
- I must find someone to act as a deputy for me during my absence. 我必须找一个人，在我离开期间代理我的职务。
- My role is to act as a mediator between employees and management. 我的角色就是协调雇员与管理者之间的关系。
- He gave his friend a book as a go away token. 他送朋友一本书作为临别纪念。
- The presence of the army should act as a check on civil unrest. 军队的存在应能制止民间的动乱。
- He gave his friend a book as a go - away token. 他送朋友一本书作为临别纪念。
- His wife's calm nature act as a counterbalance to his excitability. 他妻子生性从容不迫，这对他的易冲动的个性起著平衡作用。
- She paid her way by acting as a guide. 她当导游来维持生活。
- She acts as a private secretary to him. 她担任他的私人秘书。
- Then you have to act as a dishwasher yourself. 那么就由你来充当洗碗机吧。
- The good news acted as a tonic on us all. 那个好消息让我们大家欢欣鼓舞。
- The paid his way by acting as a guide. 他当向导来抵他的费用。
- He act as a middleman in discussion between the two company. 他在两公司的谈判中作中间人。
- The heart act as a muscular pump. 心脏充当了一部强有力的泵。
- He acted as a pantaloon in the play. 他在剧中扮演老旦。
- She acted as a minor role in the play. 她在剧中扮演了一个次要的角色。
