Spongosine
海綿核苷, 2-甲氧腺苷
??? 情景例句
Can I ring you up?
我可以給你打電話嗎？
He tries to button his own shirt,but he can't do it.
他試著扣好他的自己的襯衫，但是他不能做到。
He'll return to London the week after next.
再下個星期他將返回倫敦。