(-pp-)

1. [intransitive, transitive] to become or make sth weaker, lower or less
   （使）减弱，降低，减少◆The price of the shares dropped by 14¢.
   股价下跌了 14 分。◆The shares dropped in price by 14¢.
   股价下跌了 14 分。◆Inflation dropped 0.5 per cent in November.
   通货膨胀率 11 月份下降了 0.5%。◆He had to drop his price by $300.
   他不得不降价 300 元。⨁to drop dramatically / sharply / slightly / steeply
   暴／猛／微／骤跌

●ˌdrop the ˈball (on sth) (NAmE) (informal) to be responsible for sth going wrong or for doing sth badly; to stop taking responsibility for sth
犯错误；失职◆I want to know who dropped the ball on this project.
我想知道谁把这个项目搞砸了。

 ➡  idiom at bottom
●ˌdrop aˈway

=

drop off ●ˌdrop ˈback (to sth)to return to a lower level or amount
回落◆The price of gold dropped back to $978 an ounce.
黄金价格回落到了每盎司 978 美元。●ˌdrop ˈoff (BrE) (also ˌdrop aˈway, NAmE, BrE ) to decrease in level or amount, especially after being high for a long time
下降◆Consumer spending dropped off sharply in February.
消费开支二月份急剧下降。  ➡  drop-off ●ˌdrop ˈout (of sth)to no longer take part in or be part of sth
不再参加；退出◆Some investors want to drop out of the deal.
某些投资者想退出这笔交易。