When small creatures swim past, they bend the hairs on the bladder, causing a flap to open.

当小生物游过时，它们会弯曲膀胱上的毛发，导致膀胱瓣打开。

Now is your chance to find out! Put both feet in, get in the water, and feel how it is to flap instead of kick.

现在是你发现的机会！双脚都伸进去，入水，感受拍打而不是踢腿的感觉。

Furthermore, the birds orient themselves carefully with regard to the Sun and gently flap their wings to increase convection cooling.

此外，这些鸟会根据太阳的位置谨慎调整自己的方向，并轻轻拍打翅膀以增加对流的降温效果。

The flap of the envelope had come unstuck.

信封的封口没粘牢张开了。

She gets in a flap over the slightest thing.

极小的事也能令她不安。

With a flap of its wings, the bird was gone.

鸟振翅飞走了。

There's no need to flap—I've got everything under control.

不必担心—一切都已在我控制之中。

He drew back the tent flap and strode out into the blizzard.

他拉开帐篷的门帘，大步走进了暴风雪中。

She folded up her letter, licking the envelope flap with relish.

她把信折起来，享受地舔着信封盖。

It was so shocked by the beauty of Wang that it even forgot to flap wings.

它被王昭君的美丽所震撼，甚至忘记了扇动翅膀。

I want the zipper teeth to show no flap.

我想把拉链齿露在外面，不要盖儿。

The flap over rap is not making life any easier for him.

人们对说唱乐的争议使他的日子更不好过。

The flap over rap is not making life any easier for him.

人们对说唱乐的争议使他的日子更不好过。

If not, your possessions are safest in a pocket with a button-down flap.

如果没有，你的物品放在有纽扣的口袋里是最安全的。

You can train it to flap its wings to escape a situation but it's very difficult to get it to flap its wings for food.

你可以训练它扇动翅膀以逃避某种情况，但要让它扇动翅膀获取食物是非常困难的。

With a flap of its wings the sparrow flew off.

麻雀忒儿一声飞了。

Ball nut, a fixed spherical nut driven by the jackscrew for flap and stabilizer movement.

球形螺母，由顶头螺钉驱动的固定球形螺母，用于翻板和稳定器运动。

Go flap your ears!

打你的耳光去！

My hands started shaking as I loosened the flap.

当我打开了信封，我的手开始发抖了。

You know how when you slap or flap meat, it makes a noise?

你知道当你拍打肉的时候，它会发出声音吗？

Couldn't you just open a flap or something and let it out?

你难道不能在(宇航服上)开个口之类的，把气味儿放出来么？

With this new shape, the vertical gurney flap (2) has been reduced.

与新的改动相配套，垂直gurney襟翼(2)缩小了。

This clouding can be caused by an inflammation under the flap of cornea tissue.

这种浑浊是由角膜瓣下角膜组织的炎症反应所造成的。

Mr Obama’s televised beginning-of-term speech to schoolchildren caused a flap.

电视上播放奥巴马给小学生做新学期演讲，民众议论纷纷。

New astigmatism caused by wrinkling in the corneal flap or other flap complications.

由角膜瓣褶皱所造成的散光或其他角膜瓣的并发症。

Pieces of plastic and cardboard flap across the glass-free windows of tatty brick houses.

塑料片和硬纸片拍打着破旧的砖屋的玻璃碎了的窗户。

Originally, inserting a new lens meant cutting a flap in the eyeball some 11mm across.

最初，植入一个新的晶体意味着在眼球上划开一个大约11毫米的口子。

They have a large flap of skin that they use as a mask to cover their face when they sleep.

它们长有一大片的皮瓣，在睡觉时可用作遮脸的罩子。

They've never sprinted headlong into a flock of seagulls to watch them flap and scatter.

他们也不曾猛冲入海鸥群中，看着它们振翅四散。