GbEng
你本来应该有足够的常识，在拆开电线之前先把电源切断。 You should have had enough sense to turn off the electricity supply before disconnecting the wires.
你需用快刀才能把结切断. You need a sharp knife to cut through the knot.
我们正交谈时, 线路被切断了. We were cut off in the middle of our conversation.
小心别切断了手指头! Mind you don't cut your fingers off!