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1.defensive 自卫的[qh]
Don't ask him about his plans─he just gets defensive.[qh]
别问他有什么计划——他老存有戒心。[qh]
2.carry out 实施[qh]
Police say they believe the attacks were carried out by nationalists[qh]
警方说，他们认为袭击是民族主义分子发动的。[qh]
3.specific 具体的[qh]
I gave you specific instructions.[qh]
我给过你明确的指示。[qh]
4.perform 完成[qh]
A computer can perform many tasks at once.[qh]
电脑能同时做多项工作。[qh]
