Tommy was watching the shutters open and then shut, open and then shut.

汤米在看着百叶窗开了又关，关了又开。

youdao

At the bakery, a heavy metal door swings open and then clangs shut quickly, and a man scurries away holding five round pieces of freshly baked bread.

在一家面包店，一扇沉重的金属门突然打开，然后又很快地关上。一名男子捧着5个刚刚出炉的圆面包迅速离去。

youdao

You should not press button for wrong floor without acting appropriately ashamed as elevator stops and doors open then shut without anyone leaving.

千万别乱按楼层按钮。如果因为您按错而电梯开了没人出电梯，那千万别装作若无其事。

youdao

Under their balcony a bus stopped, brakes wheezing, its doors slapped open, then shut, engine roaring and sending up a plume of noxious smoke as it rumbled away.

NEWYORKER: Shauntrelle