Ectomesenchyme
外胚层间(充)质
🗣️ 情景例句
I like the color on me, don't you?
我觉得这种颜色较适合我，你说呢？
I wonder what makes you do that.
我不知道是什么使你做那件事。
Go down this street until you reach the second traffic lights. Turn right.
顺这条街往前走，直到第2个红绿灯处。往右拐。