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
They were ... they were ... they were average.
他们……他们……他们是普通身材。
Is it far?
远吗？
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。