Subfluvial
水下的; 河底的
🗣️ 情景例句
I've seen a lot of people wearing runners lately. I guess they're back in fashion.
最近我看到很多人穿上了披肩，我看是不是披肩又流行起来了？
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
In so far as any inquiry is a secret one,
任何一项研究都涉及到保密，