Synachrom
苯乙烯, 二乙烯苯多孔有机载体
🗣️ 情景例句
Yeah.
吃了。
Sorry, sir. But it's our graduation day.
对不起，不过，今天是毕业的日子嘛。
Look! That girl has fallen off her bicycle.
看！那个女孩从自行车上摔下来了。