Irreplaceability
n. 无法调换, 不能取代
🗣️ 情景例句
Anything can I help you with?
有我能帮忙的地方吗？
He knocks boldly at the door who brings good news.
彼叩门声响，必来报佳音。
Good, we'll be expecting him.
好，我们等着他。