Certificate of validity
[法] 有效证明书
🧩 词语组成解析
certificate
[sɚ'tɪfɪkət]
n. 证明书;文凭，结业证书;
vt. 发给证明书;用证书证明（或认可）;
cert 搞清 + ifi=fy表动词 + cate表名词 → certify搞清楚=证明+ cate表名词 → 证件
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
A pentiunIII 500 can run at 8 times the speed of a DX4 100. But is also runs a lot hotter.
奔腾III 500 的速度比DX4 100 要快8倍，但运行时散发的热量要更大。
An empty hand is no lure for a hawk.
空手诱不来老鹰。
I had come ten miles since leaving the town,
从小镇出来，我走了10英里。