flatten

1. V-T/V-I If you flatten something or if it flattens, it becomes flat or flatter. 使变平; 变平

He carefully flattened the wrappers and put them between the leaves of his book. 他小心翼翼地弄平包装纸，把它们夹在书页里。

The dog's ears flattened slightly as Cook spoke his name. 当库克叫狗的名字时，狗的耳朵稍稍耷拉了下来。

2. PHRASAL VERB Flatten out means the same as . 使变平; 变平

The hills flattened out just south of the mountain. 在山的南边丘陵就变得平坦起来。

3. V-T To flatten something such as a building, town, or plant means to destroy it by knocking it down or crushing it. 夷平 (建筑物、城镇或植物)

...explosives capable of flattening a five-storey building. …足以把一幢5层建筑夷为平地的炸药。

...bombing raids flattened much of the area. …空袭把该地区的许多地方夷为平地。

4. V-T If you flatten yourself against something, you press yourself flat against it, for example, to avoid getting in the way or being seen. 使自己贴着 (以免挡道或被看见)

He flattened himself against a brick wall as I passed. 我经过的时候，他紧贴着一堵砖墙站着。

5. V-T If you flatten someone, you make them fall over by hitting them violently. 击倒

"I've never seen a woman flatten someone like that," said a crew member. "She knocked him out cold."

“我从没见过一个女人像那样把人击倒”，一名机组人员说，“她把他打昏过去了。”