?? 詞語組成解析
citrus
[['sitr?s]]
n. 柑橘屬果樹
tree
[tri]
n. 樹;木料;樹狀圖;宗譜;
vt. 把…趕上樹;使處于困境;把鞋型插入（鞋內）;
??? 情景例句
Chocolate, too?
也是巧克力的？
Till we meet again.
后會有期。
These alone took sixteen months to build.
僅這兩座塔就花了16個月才建成。