Back-packer
支撑式封隔器
🧩 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;
packer
['pækə]
n. 包装机;罐头食品工人;赶牲口运货的人;打包机;
🗣️ 情景例句
Tom's about to open the doors. Tom
准备要开门了。
Excuse me. Could you give me change for a dollar?
劳驾，你能不能换1元零钱给我？
It was not long before a helicopter arrived on the scene to rescue the survivors of the plane crash.
不久，一架直升飞机飞抵飞机失事现场，来搭救这几个幸存者。