Ferrules
n. （棍棒頂端等的）金屬箍, 金屬環, 套圈( ferrule的復數形式 )
??? 情景例句
My pleasure, Doctor.
非常榮幸，醫生。
This pencil is longer than that one.
這支鉛筆比那一個長。
They play it like this, six students stand in a row in front of the class.
6個學生在全班前面站成一排。