Pre-testing
n. （广告业中的）预先测试
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
testing
[['testiŋ]]
n. 测试\\na. 吃力的, 试验的
🗣️ 情景例句
I heard that some tours actually go down into the canyon. Is that true?
我听说有的旅游团真正下到峡谷里去了。那是真的吗？
That's not my area, but I'll get an answer for you.
那不是我的范围，但我会为你找出答案。
Number 13 buses run much more frequently, don't they?
13路车跑得更勤，是不是？