2. 注意 against 是介词,不是动词。如: 他靠在树上。 正:He leaned against the tree. 误:He against the tree. 这个计划你是赞成还是反对呢? 正:Are you for or against the plan? 误:Do you support or against the plan? 3. 正因为against是介词,所以后接动词时要...