Plasmodiblast
滋养层
🗣️ 情景例句
Hello, this is ... What can I do for you?
喂， 我是……我能为你做点什么吗？
The older the goose the harder to pluck.
越老越狡猾。
I slipped and fell downstairs.
我滑了一跤，从楼梯上摔下来了。