Ectochorion
外绒(毛)膜
🗣️ 情景例句
She exchanged a few words with the foreigner.
她和那个外国人交谈了几句。
Be considerate towards the poor.
要为穷人著想。
all admit radical changes of destination once the journey has begun;
他们无不承认，一旦"旅程开始，目的地"常有急剧的变化。