Paradiazine
(=pyrazine)對二嗪, 吡嗪, １, ４－二氮雜苯
??? 情景例句
I surely do.
我當然喜歡。
She's very well,thank you.
她很好，謝謝您。
Yes, that's possible, but we can't be sure.
是的，有可能，可是我們不能確定。