Xir
abbr. X-linked lymphocyte-regulated X-连锁淋巴调节
🗣️ 情景例句
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
To walk together
走在一起
Yes, and full payment is due within 30 days.
是的，如果在30天骨付款就没有折扣。