Collets
(collet 的復數) n. 寶石座, 筒夾, 套爪\\nvt. 把...鑲進底座
??? 情景例句
Please have two window seats placed aside for us.
請為我們保留兩個靠窗口的位子。
The frog in well knows nothing of the great ocean.
井底之蛙不知汪洋大海。
and a very firm hand must be employed in the early stages.
因此開始階段需要有一位強有力的老手。