To back up...
支持..., 撑(某人)的腰, 阻碍..., 使...倒退, 阻塞..., 使...积滞
🧩 词语组成解析
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
🗣️ 情景例句
So it seems.
好像是这么回事。
Scratch a Russsian, and you('ll) find a Tartar.
文明不能改变本性。
But there was no time to think.All her other friends were now outside the door.
但来不及去想了。其余的朋友现在也全都到门外了。