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

"The best way to learn mathematics is to do mathematics."

大多數人不是為了理解而聽，而是為了回答而聽。

The ocean is our greatest untapped resource, and responsible aquaculture is the key to unlocking its potential.

政府、企業和科學家之間的合作是保護海洋的關鍵。

自由不是被給予的，而是被奪取的。

The next green revolution won't come from a lab alone—it will come from farmers' fields around the world.

Innovation in database systems is not just about speed, but also about adaptability and scalability.

最好的領導者是那些多聽少說的人。