色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

目標(biāo)不是完美，而是進(jìn)步。

在量子力學(xué)的領(lǐng)域里，觀察者和被觀察者密不可分，這對(duì)我們關(guān)于現(xiàn)實(shí)的經(jīng)典觀念提出了挑戰(zhàn)。

Diplomacy requires strategic and long-term thinking to achieve a country's long-term interests and security.

海洋是我們最大的未開發(fā)資源，負(fù)責(zé)任的水產(chǎn)養(yǎng)殖是釋放其潛力的關(guān)鍵。

Don't let yesterday take up too much of today.

What we need to do is to ensure that every Chinese person can drive a car produced by their own country.

The greatest predictor of a novel's quality is the novelist's willingness to confront the unlovely truth about himself or herself.