Certification of fitness
[化] 质量合格证
🧩 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
Does he have a middle name?
他有中间名字吗？
It's going to snow tomorrow.
明天将下雪。
Every year, several classes visit the factory.
每年都有好几个班去参观这家工厂。