Filed number
字段号
🧩 词语组成解析
v. [专利]申请；存档（file的过去分词形式）
🗣️ 情景例句
please don't complain
你可别再抱怨
How long have you been studying English?
你学英语多久了？
She guided the tourists around the castle.
她引导旅游者参观了这座城堡。