They've got to come up, warm, get that solar power, and then plunge back into the depths, and go up and down and up and down.

它们必须上升，寻找温暖，获得太阳能，然后它们再下降到深处，然后上升，下降，上上下下。

youdao

After a steep plunge during the recession, companies have stepped up their capital spending, which rose by 8.9% in the year to the third quarter of 2010.

在经历了萧条期的暴跌之后，企业的资本投资已上升了一个台阶，截止2010年第三季度相比去年全年总额上升了8.9%。

youdao

Or were short-sellers covering a bet on a post-testimony plunge by buying up News Corp. shares?

FORBES: Is Rupert Murdoch An Old Fox Or Just Old?

If nothing else, it is my sincere hope that it inspires some entrepreneurs to take the plunge and start up their own business.

FORBES: Will The American Jobs Act Save Our Economy? A Resounding... Maybe.

The squeeze on the rouble comes just as the benefits to the Russian economy of the huge devaluation in 1998, which made imports plunge and pepped up local production, are wearing off.

ECONOMIST: What will Putin do?