重點(diǎn)講解:
1. in contact with 接觸;遇見;
Have the children been in contact with the disease?
孩子們同這種疾病有過接觸嗎?
2. search for 搜尋;搜索;搜查;尋求;
The police cordoned off the railway station to se arch for the escaped prisoner.
警察在車站戒嚴(yán),搜捕逃犯。
3. be applicable to 適用的;適當(dāng)?shù)模豢蓪?shí)施的;
The method is applicable to both metalized and conventional solid propellants.
這種方法既適用于普通的推進(jìn)劑,也適用于含金屬的推進(jìn)劑。
4. in operation 運(yùn)轉(zhuǎn),運(yùn)行;
The machine is in operation.
機(jī)器正在工作。
n. 進(jìn)入,入口,登記,條目