River system
[经] 河川系统
🧩 词语组成解析
river
['rivə]
n. 河，江;溪，巨流;
🗣️ 情景例句
No. Please endorse the check at the back.
不会的。请在支票的背面签名。
Quality matters more than quantity.
质重于量。
Haven't you heard?
你没听说吗？