Xiphisternum
n. [解][动]剑胸骨
🗣️ 情景例句
The other day he finally popped the question.
第二天他终于开口求婚了。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
I'm afraid I can't remember.
恐怕我记不得了。