•Drop the gun, put your hands in the air, and don't make any sudden movements.把枪放下，手举起来，别轻举妄动。

•He had a sudden heart attack while he was on holiday.他度假时心脏病突然发作。

•First they announce their engagement and then they tell me Angie's pregnant - it's all a bit sudden really.他们先是宣布订婚，接着告诉我安吉怀孕了——一切都有点太突然。

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•It seemed to happen all of a sudden - I felt dizzy and I just collapsed.一切似乎都发生得很突然——我觉得头晕，然后就晕倒了。