Nitrosite
亚硝酯肟酸
🗣️ 情景例句
He is good at getting a point across to people.
他善于让人信服他的观点。
He is playing on the see-saw in the yard.
他正在院子里玩跷跷板。
One morning the tiger was very, very hungry.
一天早上老虎饿极了。