1 PHRASAL VERB (成本、水平或数量)下降，降低 If the cost, level, or amount of something comes down, it becomes less than it was before. (成本、水平或数量)下降，降低
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Interest rates should come down. [VERB PREP.]
利率应该降低。
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If you buy three bottles, the bottle price comes down to £2.42. [V P + to/from]
如果买3瓶，价格会便宜一些，每瓶2.42英镑。
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The price of petrol is coming down by four pence a gallon. [V P + by]
汽油的价格每加仑降了4便士。
2 PHRASAL VERB 落下;降落 If something comes down, it falls to the ground. 落下;降落
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The cold rain came down. [VERB PREP.]
下起了冰冷的雨。
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The curtain came down after the first act. [VERB PREP.]
第一幕过后，幕布落了下来。
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A Boeing 737 came down on the M1 motorway. [VERB PREP.]
一架波音737降落在1号高速公路上。