Germ-layer
[医] 胚层, 生殖层
🧩 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
You'll send yourself to an early grave.
你这样会未老先衰的。
True love shows itself in time of need.
急需时见真情。
The situation is serious. Something must be done before it's too late.
形势危急。得及时采取措施。