nose-dive

基本解释

That is why there is frankly developers: Once the marketing tools too often, the sales may be a nose-dive .
這就是爲什麽坦率開發商：一旦市場營銷工具，往往在銷售可能是一個垂直降落。
It will look like you have a choice, speed or height, but either way you're still going to nose-dive into the ground.
看起來還有選擇，選擇速度或是高度，但無論如何最後還是會大頭朝下墜曏地麪。
If tight turnaround time or bad news given out with no solution sends your boss's demeanor into a nose-dive, take note, be patient and more strategic.
如果周轉時間很緊張或得到了壞消息卻沒有解決方案讓你老板的風範跌入穀底，做做筆記，讓自己有點兒耐心竝更具有戰略性。
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The number of workers per Medicare beneficiary already has plummeted from 4.1 in 1970 to 3.2 in 2011 and is expected to nose-dive even further to 2.1 by 2080.
FORBES: U.S. Treasury to President Obama: Medicare's Current Policy 'Is Unsustainable'
When that happens markets will nose-dive.
FORBES: When Bad News Is Good News For Stocks
On another dismal day for U.S. equities, a combination of bad economic data and riots in debt-ridden Greece have sent markets on a nose dive, as they approach a seventh consecutive week of declines.
FORBES: Stocks Sell Off Amid Greek Riots

If prices, profits, or exchange rates nosedive, they suddenly fall by a large amount.
Nosedive is also a noun.
If something such as someone's reputation or career nosedives, it suddenly gets much worse.
Nosedive is also a noun.