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
It's certainly a pleasure to meet you.
认识你真是我的荣幸。
You had better not bother him right now.
你现在最好不要去打扰他。
Just relax.
放松一下。