Few shots are as challenging as the low volley.

Although automatic text translators are now reasonably effective, voice recognition has proved more challenging.

尽管自动文本语言翻译目前相当有效, 语音识别还是十分具有挑战性的.

It is well known that operating a process under unstable conditions is a challenging control problem.

众所周知,将程序操作在不稳定点的条件上是很具挑战性的控制问题.

The law must have teeth, and it must be enforced.

法律必须拥有效力，而且必须强制实施。

He suddenly smiled, revealing teeth that had recently been capped.

他突然笑了出来，露出了刚箍过的牙。

The bear exposed its teeth in a muffled growl.

那只熊龇出牙齿，发出一声低沉的吼叫。

I can't understand why folks complain about false teeth.

我就不明白，人们为什么老是抱怨假牙的问题。

Brush your teeth after each meal and floss daily.

餐后要刷牙，而且每天要使用牙线清洁牙缝。

I felt like I was being kicked in the teeth every day.

我觉得每天都在遭受失望的打击。

He won, but only by the skin of his teeth.

他赢了，但是赢得十分勉强。

Having teeth attached to the edge of the jawbone without sockets.

长有颌缘牙的、端生齿的动物.

His eyes nearly jumped from their sockets in surprise.

他惊讶得眼珠子差一点跳出来.

In ginza avenue, the silver is divided into east and west sockets.

以银座大道为界, 银座分为东、西银座.

We can split the system into many packages linked with plugs and sockets.

我们可以将此系统分成许多用插头和插座连接起来的部件.

Miss Pao flushed crimson and her big eyes seemed about to pop out of their sockets.

鲍小姐脸飞红,大眼睛像要撑破眼眶.

Your eyes are set in sockets.

你的眼睛是嵌在眼窝里.

The teeth were firmly cemented in their sockets.

牙齿被牢固地粘合在其孔窝内.

She feared her eyes might actually pop out of their sockets.

她害怕她的眼睛会真的从眼窝里瞪出来.

Make sure the sockets in your house are fingerproof.

确保你房中的插座是防触电的.

All new PCs now have USB sockets.

新的个人计算机现在都有通用串行总线插孔。

Rotate the shoulders in their sockets five times.

让肩膀绕臼部转动5次。