F region
【气象学】F区,F(电离)层(＝F layer)
🧩 词语组成解析
🗣️ 情景例句
This is not the way to spend our fifth anniversary.
这不是我们过五周年纪念日的方式。
Money is the sinews of war.
无钱莫打仗。
Three months passed, and then one morning, Sam found his wallet outside his front door.
3个月过去了，后来在一天早晨，萨姆在自己的大门外发现了他的钱包。