This manual fixation—an indirect by-product of walking upright on two legs—has helped yield numbers in most cultures, but not all.
作为用两条腿直立行走的间接副产品,对手的过分关注帮助大多数文化产生了数字,但并非所有文化都是如此。
We could see what looked like a big bed in a hotel room—with beige quilts and pillows propped upright on the headboard.
我们可以看到像是饭店房间里的大床——铺着米黄色的被子,床头板上竖直靠着许多枕头。
A New Jersey black bear that walks upright on its two back legs and has become a social media darling has re-emerged and has been captured on video months after its last sighting.
一头用两条后腿直立行走的新泽西州的黑熊已经成为社交媒体的宠儿,距离上次被目击的几个月后,它再次出现并被拍了视频。
This represents the upright struts on a ladder that I showed you before, it represents this backbone that's shown by - that's formed by polymerizing the pentose's together through phosphate's always going 5' to 3', 5' to 3'.
线条代表梯子,上下的支柱 之前给你们演示过,代表由多聚戊糖分子,通过磷酸基从5'端向3'端方向,连接起来的主链
The backbone's on the outside of the molecule like the upright struts of a ladder on the outside of a ladder.
主链位于DNA分子结构外侧,像梯子两侧上下的支柱,记住是梯子外侧
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