• 一天一句英语口语:not...until... Theyweren'tawareofhimbeingshotuntiltheymethiminthehallwayafterexitingtheelevator.【全句解释】直到他们出了电梯,在走廊里遇到他时,才注意到他中弹了。【词语】【注释】①not...until...:直到……......