In 'come back', 'break down' and 'fall off', 'back', 'down' and 'off' are all adverbial particles.
在comeback、breakdown和falloff中，back、down和off都是副词小词。
He was asked to tone down the spices and garlic in his recipes.
他被要求烹调时少放香料和大蒜。
Come and sit down—you look done in.
过来坐坐吧—你看样子累坏了。
Physical and ideological barriers had come down in Eastern Europe.
物质和意识形态上的障碍在东欧都已减少。
The company closed down operations and began liquidating its assets in January.
这家公司在1月份停止运作，开始把其资产折换成现金。
He was shot down over Denmark and spent three years in a prison camp.
他在丹麦上空被击落，在战俘集中营呆了三年。
None can match your sheer will-power and persistence in wearing down the opposition.
在消磨反对派的意志方面，没有人能比得上你那惊人的毅力和恒心。
He poured himself a whisky and sat down in the chair.
他给自己倒了一杯威士忌，然后坐在椅子里。
Sugar and starch are broken down in the stomach.
糖和淀粉在胃里被分解。
You have my room and I'll bed down in the living room.
你用我的房间，我睡客厅。
The break-down of law and order could result in killing on a massive scale.
法律和秩序的崩溃可能会导致大规模的杀戮。
He sat in a kitchen chair, reached down and pulled off his boots.
他坐在厨房的椅子上，弯腰脱掉了靴子。
Interest rates began to gyrate up toward 20 percent in 1980 and then down and up again.
1980年，利率开始朝着20%波动上升然后下降，又再次上升。
Timber owners have often produced lumber at a loss and survived these down cycles in demand.
木场主经常赔本生产木料，以便在需求低迷期挺过来。
Isabel put her magazine down and said in a neutral voice, "You're very late, darling."
伊莎贝尔放下她的杂志,以不动声色的口吻说，“亲爱的，你太晚了”。
She sat down in the kitchen and began peeling potatoes.
她在厨房里坐下，开始削土豆。
He sat down in the armchair and turned on the radio.
他在扶手椅上坐下来，打开了收音机。
I found him in the corridor nervously pacing up and down.
我发现他在走廊里焦虑不安地走来走去。
The performers, in costume and makeup, were walking up and down backstage.
演员们穿着戏服化着妆，在后台走来走去。
Tiny boats bobbed up and down in the harbour.
小船在港湾中颠簸。
He fell awkwardly and went down in agony clutching his right knee.
他笨拙地摔倒了，紧抓住右膝盖痛苦地蹲了下去。
Sam snuggled down in his pillow and fell asleep.
萨姆舒适地枕着枕头睡着了。
Frank put the first plank down and nailed it in place.
弗兰克放下第一块木板，把它钉到位。
A gust of wind knocked him off balance and he fell face down in the mud.
一阵大风吹得他失去了平衡，脸朝下摔在了泥里。
She was pacing up and down in front of her desk.
她在办公桌前踱来踱去。
All the time Stephen was lying face down and unconscious in the bathtub.
斯蒂芬始终面朝下趴在浴缸里，不省人事。
The boat rocked up and down in rhythm with the sea.
小船随着海浪起伏有致。
She dresses down in dark glasses and baggy clothes to avoid hordes of admirers.
她着装随意，戴墨镜，穿宽松的衣服，以避开大群的仰慕者。
Everyone knows that the sun rises in the east and sets down in the west.
人人皆知太阳从东方升起，从西方落下。
How do you get these hearts to move up and down and seemingly in random patterns?
你怎样才能让这些爱心看起来是在随机的模式中上下移动呢？
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