Certification of product
[化] 产品证明书
🧩 词语组成解析
certification
[ˌsə:tifi'keiʃən]
n. 证明，鉴定，证书;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
It's a bet.
一言为定。
Tell me truth, don't beat around the bush.
实话告诉我，别兜圈子。
Look at Mr Thin. He was poor. He didn't have much money.
瞧瘦先生。他很穷。他没有很多钱。