Crown wheel
[機] 冠狀輪
?? 詞語組成解析
crown
[kra?n]
n. 王冠;花冠（有時象征勝利）;王權(quán);（某物的）頂部;
vt. （尤指通過增添成就、成功等）使圓滿;為…加冕;使圓滿完成;給…以榮譽;
vi. 露頂;
wheel
[wil]
n. 輪子;旋轉(zhuǎn);Wheels 汽車;有…輪子的汽車（或自行車等）;
vi. 轉(zhuǎn)動，旋轉(zhuǎn);突然轉(zhuǎn)變方向;
vt. 推;拉（車）;使變換方向;（使）迅速轉(zhuǎn)身;
??? 情景例句
Welcome aboard, Malcolm!
歡迎加入， Malcolm
I don't feel up to going to work today.
我今天不舒服，不能上班。
sailing vessels like the Cutty Sark were used to carry tea from China and wool from Australia.
“卡蒂薩克”號之類的帆船被用來從中國運回茶葉，從澳大利亞運回羊毛。