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

若要優(yōu)美的嘴唇，要講親切的話。

It is the duty of the inventor to make his work as useful and as accessible as possible to the public.

The best ideas often come from the intersection of different fields and perspectives.

【釋義】不做那些自己不該做的事，不要貪圖那些不屬于自己的東西。

Every challenge is an opportunity to learn and improve.

兒童文學是想象力的基礎，創(chuàng)造力的發(fā)源地，也是終身熱愛閱讀的第一步。