1. 向下，在下面　 from above towards a lower place or position; in a low or lower than usual place or level
2. 由大到小，由强到弱　 into a smaller, lower, thinner, weaker, etc., state
3. 往南　 in or towards the south
4. 处于低等地位，处于潦倒状态　 in or towards a lower or worse condition

　The man bent down to kiss the child.　那男人俯下身子去亲吻小孩。
　It's very early, and no one is down yet.　时间太早，楼下还没有人。
　Don't let the fire burn down.　别让火熄灭。
　I wish you would turn the radio down a bit.　我真希望你能把收音机的音量调低一些。
　The military government had kept the people down for many years.　军政府压制人民很多年了。
　That family has certainly come down in the world.　那个家族确实衰落了。
　Once a very rich man, he is now down and out and must depend upon his friends for help.　他曾是一个很富的人，现在完全潦倒了，必须靠朋友周济。
　Don't be down on him.　不要对他有偏见。
　Wheat is down over 10 percent.　小麦跌价一成多。
　He is down with a cold.　他患了伤风。

1. （表示位置）在…的下方；在…的下端　 in a lower place in; downwards by way of
2. （表示时间）自…以来；持续一段时间　 from an earlier to a late point in time
3. （表示方向）沿着…向下；沿着，顺着；向…那一端；朝〔在〕…的下游地区；朝〔在〕…的南方；到，去；从页首开始，向…的底部看　 in a lower place, downwards by way of; along; to or at the far end of; in the direction of the current of; for places south of the speaker; to; of a written or printed document—in a direction from the top to the bottom of the page

　belt ～　在…上迅速移动
　cast ～　把…投向…
　draw ～　沿着…向下拉
　drive ～　沿着…向下开
　flow ～　沿着…向下流
　get ～　沿…往下走
　go ～　沿…下来
　jump ～　顺…向下跳
　look ～　沿…向下看
　pass ～　沿着…走下
　ram ～　把某物沿…塞下
　roll ～　沿…向下滚
　slide ～　沿…（表面）下滑
　throw ～　沿…向下抛
　walk ～　沿…走
　force ～ sb's throat　强行灌输
　～ the drain　浪费，消失
　～ the line　完全
　～ the street　沿街道
　～ the wind　顺风

　Their house is down the hill.　他们的房子在山下。
　His office is down the stair.　他的办公室在楼下。
　He looked down the barrel of the gun.　他顺着枪管往另一端看。
　The story came down the ages.　这个故事从古代流传至今。
　He looked back down the last year.　他回顾了去年的情景。
　The tears trickled down her cheeks.　热泪一滴滴从她脸颊上滚下来。
　I saw him walking down the street.　我看见他在沿着街走。
　They hired a boat and went for a row down the river.　他们租了条小船，划向河的下游。
　The movement spread down the Rhine.　这运动沿着莱茵河往下游地区蔓延开来。
　I am just going down the shops.　我正要去商店。
　He always looks down the column of the TV program in the newspaper before he starts reading the news.　在阅读报上的新闻以前，他总是先把电视节目栏从头到尾看一遍。

1. A 向下的，下行的　directed or going down
2. P 沮丧的，情绪低落的　sad; in low spirits
3. P （以…)落后于对手的　behind an opponent (by)
4. P 完成了的，已处理的　finished; already dealt with

　Cast a down look!　向下看！
　He walked to the elevator and pushed the down button.　他走到电梯旁按了一下“向下”的按钮。
　We felt very down after the party was over.　舞会结束后我们甚感沮丧。
　I feel down today.　我今天感到沮丧。
　He was down by 15:40 in the third game.　在第3局中他以15比40输给对方。
　The student reported to his parents on his exams: five down and two to go.　那个学生向他父母汇报考试情况：已考完五科，还剩两科。　He felt down about his failure.　他对自己的失败感到沮丧。
　He was so down that he didn't want to live any longer.　他情绪低落以至于不想活了。

　［反义词］ adv. up adj. glad, happy, up
　［词源］古英语dune（从山上下来）