F region
【气象学】F区,F(电离)层(＝F layer)
🧩 词语组成解析
🗣️ 情景例句
The rural workforce has been flowing in to the cities ever since the open door policy was adopted.
自从改革开放政策实施以来，农付劳动力正不断流向城市。
The Senator acceded to his defeat before the end of the election.
那位参议员在选举结束以前就承认落选了。
I can't find that either.
也找不到。