Bisymmetric
雙對稱的, 兩軸對稱的, 兩側對稱的
??? 情景例句
and come back Sunday.
然后在星期天回來。
Hang up one's hat in another's house.
在別人家里久留不去，長期居住。
Dan Robinson has been worried all week.
丹。魯賓遜焦慮了整整一個星期。