F layer
[电] F层
🧩 词语组成解析
layer
['leiə]
n. 层，层次;膜;[植]压条;放置者，计划者;
vt. 把…分层堆放;借助压条法;生根繁殖;将（头发）剪成不同层次;
vi. 形成或分成层次;[植]通过压条法而生根;
🗣️ 情景例句
Where's the 'Lost and Found' counter?
失物招领处在哪儿？
Care brings grey hair.
忧虑催人老。
Ever since, people have had difficulty in deciding whether the craft should be ranged among ships,
自那以后，人们很难决定是否应该将这种运载工具列为轮船、