Back-fill
[机] 填充
🧩 词语组成解析
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;
fill
[fɪl]
vt.& vi. （使）充满，（使）装满;
vt. 满足;配药;（按订单）供应;使充满（感情）;
n. 填满…的量;充分;装填物;路堤;
🗣️ 情景例句
She has no idea that the party is in her honor.
她不知道这个派对是为她办的。
I can't seem to get to sleep.
我好象睡不着。
both men were genuinely sorry that they had to leave.
这二位不得不离开那个荒岛时，还真的感到遗憾呢！