Core iron
[机] 心骨
🧩 词语组成解析
core
[kɔ:]
n. 中心，核心，精髓;果心，果核;[地质学]地核;[计] 磁心;
vt. 去（果）核，挖去…的果心;提取岩芯（样品）;
iron
['aiən]
n. 铁器，铁制品;熨斗，烙铁;坚强;脚镣;
adj. 铁制的，含铁的;坚强的，顽强的;残酷的;坚忍不拔的;
vt. 熨烫;给…上脚镣手铐;给…装铁具;用铁铸成;
vi. 熨衣;（衣服等）被烫平;
🗣️ 情景例句
Going swimming should be a good way of letting your hair down after a hard day's work.
游泳是在辛苦了一天后放松自己的好方法。
But Li Ming has promised to come home for the summer vacations.
但是李明已经答应暑假回家。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。