Certificateof testing
[化] 检验证书; 检验证明书
🧩 词语组成解析
testing
[['testiŋ]]
n. 测试\\na. 吃力的, 试验的
🗣️ 情景例句
If you flatter your mother a bit she might invite us all to dinner.
你如果多奉承你母亲几句话，说不定她会把我们全部请去吃饭。
If one desires to succeed in anything, he must pay the price.
如果想做成点事，就得付出代价一干。
Letters will cost a little more, but they will certainly travel faster.
这样会稍微多花点钱，但肯定是快得多了。