Certificateof testing
[化] 检验证书; 检验证明书
🧩 词语组成解析
testing
[['testiŋ]]
n. 测试\\na. 吃力的, 试验的
🗣️ 情景例句
May I have a tour of the cockpit, please?
我能参观一下驾驶舱吗？
An oak is not felled at one stroke.
万事不能一蹴而就。
He speaks little Chinese, so it's difficult to communicate with him.
他只能讲一点汉语，所以和他交流很难。