Perisoma
[醫(yī)]體壁（棘皮動(dòng)物）
??? 情景例句
Some think that all's fair in business.
一些人以為商界的一切都是公平的。
How long have they been married?
他們結(jié)婚多長(zhǎng)時(shí)間了？
I'm glad to hear that.
真是好消息，