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
I tend to drive myself too hard.
我有时会对自己要求过于严格。
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Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.