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
Do you get the picture?
明白是怎么回事了吗？
The view was terrific.
景色美极了。
Annie considered this was just the kind of demanding job she wanted.
安妮认为，这正是她想要的难度很大的工作。