be through1.■完成；做好(某事)：I'll be through with this in a few minutes.我几分钟就能把这件事做完。2.■耐心已尽；弃绝；断绝关系(with):I'm through with him.我和他断绝了关系。3.■[电话用语]接通(to):After a few minutes' wait in the call-box,I was through.我在公共电话间等了几分钟后，电话就接通了。4.■做完，完成5.■不再往来，断绝关系6.■完蛋7.■打通关系