Hetron
防火聚酯树脂
🗣️ 情景例句
Advertising, bills, bills, advertising.
广告 ，帐单 ，帐单 ，广告。
Want of care does us more damage than want of knowledge.
粗心比无知更为有害。
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。