Dithioacetals
二硫缩醛
🗣️ 情景例句
How are you?
你好吗？
Competition for this kind of goods is tough.
这种商品的竞争非常激烈。
She knew she was near the shore because the light was high up on the cliffs.
知道自己已经接近岸边了，因为那灯光是在高高的峭壁上。