滋养层 Traditional 滋養層 zī yǎng céng 🔊 trophoblastic layer (attaches fertilized… + Keep this word Meanings zī yǎng céng 滋養層 trophoblastic layer (attaches fertilized ovum to the uterus)trophoderm Its characters 滋zīto grow养yǎngto raise (animals)HSK 3层céngto pile on top of one anotherHSK 3