Each animal has a chalky skeleton.

She turned chalky white.

她变得像白垩一样白.

The light outside had chilled, and threw a chalky whiteness on the river.

外面的光线暗了下来, 在河上投上一层石灰白.

To overcome these obstacles has always been and continues to be a major challenge to aviation.

怎样克服这些障碍,过去经常是,而且现在仍然是航空界的重要难题.

This high-quality face pack gives a proven challenge to wrinkles.

抗皱 防 皱面膜问世了,它向衰老,这一生命的现实宣告挑战.

He has flung down a challenge to his political rivals.

他已向其政敌提出挑战.

The crossing of this dangerous river was a challenge to most of us.

对我们大多数人来说,横渡这条充满危险的大河确实是个挑战.

The swimming team the challenge to and begins the fierce battle.

泳队的队员为了阻止惨剧延续,开始了壮烈的战斗.

High resolution spaceborne SAR gives new challenge to radiometric calibration.

高分辨率星载SAR技术的发展,对辐射定标提出了新的挑战.

Exploring the outer space is a real challenge to mankind.

探索外层太空对人类是真正的挑战.

The board also faces a legal challenge to its existence.

这个委员会的存在与否的问题也面临法律上的问题.

Telecommuting raises a challenge to the old style of working in office.

在家工作对传统的办公室工作提出了挑战.

The image Sue projected was both a come-on and a challenge to every man in the club that night.

那天晚上，苏摆出的样子对夜总会里所有的男人来说既是挑逗又是一种挑衅。

He ignored the sentry's challenge to halt.

他不理睬哨兵喝令止步的盘问.

He accepted his friend's challenge to swim across the river.

他接受朋友的挑战要游到河对岸.

In the hall, the shallow challenger shall be allowed to swallow the swallows.

在大厅里, 肤浅的挑战者将被允许吞下家燕.

The champion and the challenger meet next week.

下星期冠军将迎战挑战者.

The challenger found out the hard way that the champion's left hand had to be avoided.

挑战者吃了苦头之后才知道拳王左手厉害,应该躲避.

The world champion was dethroned in the third round of the match by a young challenger.

这名世界冠军在比赛的第三回合被一名年轻的挑战者撵下了台.

Determining how the Democratic challenger would conduct his presidency isn't quite so obvious.

这位民主党挑战者将如何履行总统职务还不能明确判断。

They, the members of the Challenger crew, were pioneers.

他们 -- 挑战者号全体机组人员是开拓者.