1、plummet

（数量、比率或价格）骤然下跌，暴跌

In Tokyo share prices have plummeted for the sixth successive day.

东京股价已连续第6天猛跌。

The Prime Minister's popularity has plummeted to an all-time low in recent weeks.

首相的支持率在近几个星期已骤跌至前所未有的低点。

（通常指从高处）快速落下，陡直掉下

The jet burst into flames and plummeted to the ground.

这架喷气式飞机突然着火，急速坠地。

The car went out of control on a bend and plummeted down an embankment.

车子在弯道处失去控制，一头扎下堤岸。

2、appreciate

欣赏；鉴赏；赏识

Anyone can appreciate our music.

任何人都能欣赏我们的音乐。

In time you'll appreciate the beauty and subtlety of this language.

总有一天你会体会到这门语言的优美和微妙之处。

领会；了解；认识

She never really appreciated the depth and bitterness of the Irish conflict.

她从来没有真正认识到爱尔兰矛盾的深刻和激烈。

He appreciates that co-operation with the media is part of his professional duties.

他懂得与媒体合作是自己工作职责的一部分。

感谢;感激

Peter stood by me when I most needed it. I'll always appreciate that.

当我最需要的时候，彼得在我身边支持我。我将永存感激。

Thanks, lads. I appreciate it.

谢了，哥们儿。我很感激。

3、burn up

烧毁；烧光

The satellite re-entered the atmosphere and burned up.

卫星重新进入大气层，烧成灰烬。

Fires have burned up 180,000 acres of timber.

大火烧光了18万英亩的木材。

消耗；耗费

Brisk walking burns up more calories than slow jogging.

快走比慢跑能消耗更多的热量。