Companyaddress
公司地址
🗣️ 情景例句
And thanks for the directions.
谢谢你给我指了路。
And our successful techniques, and to speak about our failures.
和成功技巧，并讲出我们的失败之处。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，