英 [ˈdʌbl ʌp] 美 [ˈdʌbl ʌp]
合住：指共同居住在原本设计为一个人的住所中。
double up // [ doubling doubled doubles ]
动词词组 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. 使猛地弯下腰去; 猛地弯下腰去
...a savage blow which doubled him up.
…使他猛地弯下腰去的重重一击。
动词词组 Double over means the same as . 使猛地弯下腰去; 猛地弯下腰去 (同)(double up)
Everyone was doubled over in laughter.
所有的人都笑弯了腰。
bend over or curl up, usually with laughter or pain
同义词： double over / double
share a room or a bed designed for only one person
stake winnings from one bet on a subsequent wager
同义词： parlay
... do without 没有…也行；将就 double up 弯着身子；把…对折 draw in (火车、汽车)进站 ...
... in doing so这样做时，在这情况下 double up弯曲(四肢行为等) drive home打(钉子等)敲进去 ...
... double a.双的,两倍的 v.使加倍,翻一番 double up弯腰,把...折起来 doubt n./ v.怀疑,疑虑 ...
... double back 把...对折；往回跑 double up 弯着身子；把...对折 no doubt 无疑地，必定；很可能 ...
They only have one room left: you'll have to double up with Peter.
他们只剩下一个房间，你只好与彼得合住了。
We'll have to double up on books; there aren't enough to go around.
因为书不够人手一册，我们只好合用了。
The lids of the casserole dishes are designed to double up as baking dishes.
这些砂锅盖子的设计使它们可以兼作烤盘。
We no show up. Thursday was a double-header, nobody show up.
VOA : special.2009.07.19
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.
在这点上我们没有其他选择,而只有双倍填充,在到下一个能级之前，所以我们放入第二个电子至。
化学原理课程节选 : 麻省理工公开课
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.
这个直观上讲得通，因为我们知道尝试去最小化电子排斥力,从而尽可能的保持处于一个较低的能态,所以它讲得通,在我们在同一个轨道放入两个电子之前,我们首先把电子放入每一个轨道。
化学原理课程节选 : 麻省理工公开课
"They would have very, very severe stomach cramps, and double over, and throw up or have diarrhea."
VOA : standard.2010.01.02
Double up, he says, but erase the risk in the second purchase with option trades.
Ever-innovative financiers have given hedge funds new tools to double up their bets.
Bach will 'double up' and continue to ride for the Diamonds next season.