變細的用法和樣例：
例句
-
羊腿形的，一頭寬一頭窄的在形狀上與羊腿相似的；由粗大的一端向另一點(diǎn)或較小的一端突然變細的，如衣袖或船帆
Resembling a leg of mutton in shape; tapering sharply from one large end to a point or smaller end, as a sleeve or sail. -
纖維細胞組織一種植物組織，由有逐漸變細的尾的拉長(cháng)的細胞構成，存在于支撐和引導組織中
A type of plant tissue consisting of elongated cells with tapering ends, occurring in supporting and conducting tissue.
