Mesectoblast
中外胚层, 外中胚层
🗣️ 情景例句
What made you change your job so frequently?
为什么你经常转工？
When I was informed of the announcement of my nomination.
当获知我已被提名时。
Because the tree was mentioned in a newspaper, the number of visitors to Frinley has now increased.
就因为报上提到过这棵树，所以现在来弗林利参观的人越来越多。