Pack animal
n. 畜（如马、骆驼等）
🧩 词语组成解析
pack
[pæk]
n. 一群;包裹;（纸牌的）一副;一组;
vt.& vi. （把…）打包;塞进;拥进;（使）聚集成团;
vt. 挑选;压紧;携带;拧紧;
vi. 包装;紧挤在一起;便于折叠收藏的;匆忙离去（有时与 off 连用）;
🗣️ 情景例句
I understand you used to be in the construction business,
听说你过去从事建筑业
Tricky
诡计多端
Everybody on board was worried and we were curious to find out what had happened.
飞机上的人都很着急，大家都急于想知道究竟出了什么事。