Indispensible
不可或缺
🗣️ 情景例句
Mrs. Stewart, may I have this dance?
Stewart太太，我可以请你跳这支舞吗？
Air China has a flight leaving at 9:25.
中国航空公司有一班飞机，9点28分起飞。
It's a pleasure to meet you. Can I take those boxes for you?
很高兴认识您。我能帮您拿那些箱子吗？