Knife file
[机] 刀形锉, 刀刃锉
🧩 词语组成解析
knife
[naɪf]
n. 刀;匕首;刃部;手术刀;
vt. 切割，刺;伤害;
vi. 劈开;划过;
file
[faɪl]
vt. 提出（离婚诉讼或其他讼案）;把…归档;用锉锉;发稿，寄给报社;
vi. 发送（报道给报社）;排成一行行走;提出申请;
n. 文件（夹）;档案;纵列;锉刀;
fil线+e → 用线穿成的→ 档案
🗣️ 情景例句
I decided to give full-time attention to raising Robbie.
我决定全力抚育他。
The buyer has the option of cancelling the contract.
买主有权撤消合同。
How did you decide that product was safe?
你怎样决定产品是安全的呢？