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

我從不擔(dān)心行動(dòng)的危險(xiǎn)，我更擔(dān)心不行動(dòng)的危險(xiǎn)。

We are just beginning to understand the potential of genome editing—and the questions it raises.

The only freedom which deserves the name is that of pursuing our own good in our own way， so long as we do not attempt to deprive others of theirs， or impede their efforts to obtain it.

可持續(xù)性不是犧牲，而是機(jī)遇。

我有我的美麗方式，因?yàn)樯系蹚牟环稿e(cuò)。