Flight-testing
v. 试飞（飞机）( flight-test的现在分词 )
🧩 词语组成解析
testing
[['testiŋ]]
n. 测试\\na. 吃力的, 试验的
🗣️ 情景例句
Payments over thirty years?
三十年分期付款吗？
In secondary school, children study history and geography.
中学的小孩会读历史和地理。
This time, the policeman lost his temper.
这一次警察火了。