Xtra
n. [电讯]字母X
🗣️ 情景例句
You're a wonderful granddaughter.
真是个好孙女。
He is also very fond of playing tennis and manages to find time for a game twice a week.
他非常喜欢打网球，每周总要抽时间打两次。
Opportunity knocks but once.
机不可失，时不再来。