tail off

基本解釋

Here, the number of active users starts to tail off, with a large drop over the summer months.
這時(shí)，活動(dòng)用戶的數(shù)量開始減少，在整個(gè)夏天的幾個(gè)月有較大幅度的下降。
You spend all of this time working your tail off and yet you still find yourself in financial trouble.
你花掉了所有這些時(shí)間用于工作，卻發(fā)現(xiàn)自己仍然有財(cái)務(wù)問題。
For example, wages tend to be high near densely occupied blocks, but tail off within a mile or two.
舉例來說，在居民稠密街區(qū)的附近，工資往往較高，但一兩英里以外，工資水平就降下來了。

Many shale plays flow vigorously for just a few weeks and then tail off dramatically.
FORBES: Energy XXI Coins Money Reworking Old Exxon Mobil Wells
Even if productivity growth does tail off, it may still be strong enough to match sluggish demand.
ECONOMIST: Productivity growth
If accepted, that might require the government to raise its fiscal target even as recovery starts to tail off.
ECONOMIST: The big fight over fiscal reform

When something tails off, it gradually becomes less in amount or value, often before coming to an end completely.