Germ layer theory
[医] 胚层学说
🧩 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
Sure, that would be fine.
当然可以，那没问题的。
Marriage makes or mars a man.
婚姻能成全人也能损害人。
Her mother died when she was eight years old.
她8岁时母亲就去世了。