Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
But there are one point which I'd like to bring up about the packing.
不过还有一点我得提出来，关于包装问题。
Man alone is born crying, lives complaining, and dies disappointed.
只有人，生下时啼哭，活著时抱怨，去世时失望。
The old lady though the was a fussy creature,
老妇人觉得巡官大惊小怪，