And, in part because of that, they can slip their way in between the membrane's layers.

正因为如此，在某种程度上，它们可以在细胞膜的各个层之间滑动。

While it's maintained popularity since 1999, it slumped in 2016 when it slipped from 663rd place all the way to number 2,215.

虽然自1999年以来它一直受欢迎，但在2016年，它从第663名一路下滑至第2215名。