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
That's better than being behind.
这总比落后要好。
After getting up,I go into the bathroom and take a shower.
在起床以后，我走进洗澡间并冲个澡。
See you next Friday.
下星期五见。