State documents
[经] 公文
🧩 词语组成解析
n. 文档（document的复数形式）
🗣️ 情景例句
who spent the last five years
用过去五年的时间
Time does not bow to you,, you must bow to time.
必须抓紧时间。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。