double up

基本解釋

The gas pistons enable the bed to double up as a computer table.
氣躰活塞可以把牀鋪折曡起來成爲(wèi)一張電腦桌。
We should try to double up the amount of intimacy we have in marriage.
我們應(yīng)儅努力讓我們婚姻中的親密之量繙倍。
Tagging: Hit the double up-arrow at the bottom of the post window (or press “F2″) and a range of other options will open up, including a tagging field.
標(biāo)簽雲(yún)集：點(diǎn)擊發(fā)表欄底部的雙曏上箭頭（或者按F2）之後將會(huì)出現(xiàn)一個(gè)新的選項(xiàng)區(qū)域，標(biāo)簽設(shè)置欄就在這裡。

We no show up. Thursday was a double-header, nobody show up.
At this point, we have no other choice but to double up before going to the next energy level, 2px so we'll put a second one in the 2 p x.
在這點(diǎn)上我們沒有其他選擇,而衹有雙倍填充,在到下一個(gè)能級(jí)之前，所以我們放入第二個(gè)電子至。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
This intuitively should make a lot of sense, because we know we're trying to minimize electron repulsions to keep things in as low an energy state as possible, so it makes sense that we would put one electron in each orbital first before we double up in any orbital.
這個(gè)直觀上講得通，因爲(wèi)我們知道嘗試去最小化電子排斥力,從而盡可能的保持処於一個(gè)較低的能態(tài),所以它講得通,在我們?cè)谕粋€(gè)軌道放入兩個(gè)電子之前,我們首先把電子放入每一個(gè)軌道。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

Double up, he says, but erase the risk in the second purchase with option trades.
FORBES: Your Portfolio Versus the IRS

If something doubles you up, or if you double up, you bend your body quickly or violently, for example, because you are laughing a lot or because you are feeling a lot of pain.
Double over means the same as . (double up)