- be certain to do something一定要做点什么
- be at从事于，做;
- be applied with装配有;
- be affiliated with与…有关系;
- be accessible to可接近的;
- be laid up入库；病倒；卧病;
- be in duty bound tov.有义务;
- be in a tight corner陷入困境;陷入窘境;
- be favorable to有利于，赞成;
- be endowed with被赋予；天生具有;
- be the ragev.流行，风靡一时;
- be shorn of被剪掉
- be possessed ofv.占有，拥有;趁;
- in quantity大量;
- in preparation foradv.为…准备，作为…的准备;
- in number总共;
- in formation service在编队服务中
- in due course到一定的时候， 没过多久;
- in detail详细地;
- in default不履行责任，失职;
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