Mainsail
n. 大桅的帆, 主帆
📖 牛津释义
mainsail
n
principalsail on a sailing-ship, usu attached to the mainmast （主桅上的）主帆. =>illus at yacht 见yacht插图.
🗣️ 情景例句
Here you are. You can keep the change.
给你。零钱不用找了。
You're welcome.
不客气。
Train compartments soon get cramped and stuffy.
车厢很快就变得拥挤、闷热，