L-nmma
[醫]L-單甲基精氨酸
??? 情景例句
How often do you go running?
你多久跑步鍛煉一次？
We're having a little get-together Friday night.
周五晚上我們有個小派對。
But these are not analogous to what happens when man ages.
不過，這些衰老的情況同人并不相似。