So we needed to come up with another source, a renewable source, so we turned our attention to embryonic stem cells.

因此，我们需要一种替代材料，一种可以再生的材料，我们注意到了胚胎干细胞胚胎干细胞。

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A New Zealand airline has come up with a novel way to make sure even the most jaded and frequent flyers are paying close attention to the in-flight safety briefing.

新西兰一家航空公司最近想出奇招，要让最疲倦的旅客或者“空中飞人”们也会认真观看飞机内演示的安全指南。

youdao

A New Zealand airline has come up with a novel way to make sure even the most jaded and frequent flyers are paying close attention to the in-flight safety briefing.

新西兰一家航空公司最近想出奇招，要让最疲倦的旅客或者“空中飞人”们也会认真观看飞机内演示的安全指南。

youdao