Office duties
[经] 办公室工作制度, 办公条款
🧩 词语组成解析
n. 关税（duty的复数）
🗣️ 情景例句
and lay them face down.
将牌盖住。
Where did you visit?
你去参观了哪些地方？
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。