Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
to your finding a way to use that wonderful mind of yours.
能够让你施展你的学识。
Sorry to have kept you waiting.
抱歉使你久等了。
like a vulgar flare amid the cool radiance of the stars,
如果人生不只是群星寒光中平凡的一闪，