收起的英文：
retracting

minimum flap retraction speed
最低襟翼收起速度

When she folded up his tripod at eight thirty five, she felt good.
八点十五分时她收起三脚架,自我感觉良好。

The sailors provided against the coming storm by furling all sails
水手们收起全部船帆,以防备即将来临的暴风雨。

Raise/lower the undercarriage
收起[放下]起落架.

He rolled (up) his umbrella.
他收起雨伞。

Put up; stick up
公告;张贴;收起;自愿做

After a good day's fishing they hauled in the nets and went home.
他们捕了一天的鱼，收起鱼网满载而归。

The young man reddened, his smile dissolving instantly
年轻人脸红了，立刻收起笑脸。

Now it's time to store away your fur coats for the summer.
夏天快到了，该把你的皮大衣收起来了。

He had hardly collected the papers on his desk when the door burst open.
他刚收起桌上的文件，门就猛地开了。

minimum flap retraction speed
最低襟翼收起速度

A ladybug can retract its head into its body.
瓢虫可以将自己的头缩回到躯体中去。

Retraction of forwarded ejector either by timer or door closing
由定时器或关门控制向前顶出

The undercarriage on light aircraft does not always retract in flight.
轻型飞机飞行时起落架不一定缩回。

"I will facilitate it by repeating the question, 'Will you, or will you not, retract?'
“我可以使你容易答复，方法是再重复一遍那个问题，‘你愿不愿意？”