Invalidator
n. invalidate的變形
??? 情景例句
Thanks, Michelle.
謝謝， Michelle。
Wisdom is more to be envied than riches.
才智比財(cái)富，令人更可羨。
Excuse me. Where's the nearest post office, please?
請(qǐng)問(wèn)，最近的郵局在哪兒？