Rtecs
化学物质毒性影响的登记
🗣️ 情景例句
Oh, I feel the same way, Susan.
噢 ，我也有同样的感受 ，Susan。
Happy is he who knows his follies in his youth.
记得青年时所做的愚笨事的人是幸福的。
Just a minute, please. I'm sorry, he's not here right now. Can I ask who's calling?
请稍等。对不起，他现在不在这儿。请问你是哪位？