Mainsail
n. 大桅的帆, 主帆
?? 牛津釋義
mainsail
n
principalsail on a sailing-ship, usu attached to the mainmast （主桅上的）主帆. =>illus at yacht 見yacht插圖.
??? 情景例句
are important for the sales of your book.
對(duì)于你這本書的銷售很重要。
You'll have to decide whether you want to pass your examinations or just have a good time.
你必須決定你是想通過考試還是好好玩一玩。
The bridge is so long that the shape of the earth had to be taken into account by its designer.
由于橋身太長(zhǎng)，設(shè)計(jì)者不得不考慮了地表的形狀。