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
use my talents,
发挥我的才智，
Maybe we should hold off until we have covered item B on our agenda.
也许我们应该先谈论完B项议题。
Then he said something and I understood it.
接着，他说了点什么，这回我听懂了。