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
And let's not forget our cassette player and some tapes.
还别忘了带上我们的卡式录音机和一些录音带。
I will tell you.
我会告诉你。
Hold on for a moment, please. I'm sorry he isn't here right now. May I help you?
请稍等一下。对不起，他现在不在这里。我能帮您的忙吗？