Manufacturer's certificate
[化] 廠商證明書
?? 詞語組成解析
certificate
[s?'t?f?k?t]
n. 證明書;文憑，結業證書;
vt. 發給證明書;用證書證明（或認可）;
cert 搞清 + ifi=fy表動詞 + cate表名詞 → certify搞清楚=證明+ cate表名詞 → 證件
??? 情景例句
Have a go at it.
你來試一試。
Discontent is the first step in progress.
不知足是前進中的第一步。
I agree with you. We've got to do something about pollution. It's getting worse.
我同意你的看法。我們得對污染采取措施了。污染越來越嚴重了。