Keychain
n. 钥匙链
🗣️ 情景例句
I always worry.
我一向担心。
Have you ever thought about becoming a professional musician?
你曾经想过要成为职业音乐家吗？
It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.
它一定是一种能够燃烧而不能爆炸的气体，一种味道不很强的而且不使人致死的气体。