prep. 介词往…的下端；在…下方；沿着；贯穿
adv. 副词往下；(坐)下；下跌；从上至下；向南方；失去钱；预付；到某地
v. 动词咽下；击倒
adj. 形容词悲伤；停机
n
The cat quickly ran down the stairs to the basement.
猫迅速跑下楼梯到地下室。
After the rain, water flowed down the street.
雨后，水沿着街道流下。
The little girl slid down the slide at the playground.
小女孩在操场上滑下滑梯。
He wrote all the important details down in his notebook.
他把所有重要细节记下在笔记本里。
The sun went down behind the mountains.
太阳在山后下沉。
She looked down from the top of the tall building.
她从高楼顶上往下看。
The temperature will drop down to freezing tonight.
今晚温度会降下到冰点。
He bent down to tie his shoelaces.
他弯下腰系鞋带。
The old book fell down from the shelf.
旧书从架子上掉下来了。
The airplane touched down smoothly on the runway.
飞机平稳地降下在跑道上。
down to earth 脚踏实地
down the drain 白费
down in the dumps 情绪低落
down and out 穷困潦倒
down the hatch 喝下去
down the line 全面地
复数: downs;
第三人称单数: downs;
过去式: downed;
过去分词: downed;
现在分词: downing;
prep. 介词穿过，通过；自始至终；直至；因为，凭借；遍布；经历；彻底地；透过/通过…感知；在…之中
adv. 副词通过；从头到尾；直达；（电话）接通；完全
adj. 形容词直达的，直通的；完成的；关系了结的
