Preflighting
(preflight 的现在分词) a. 起飞前的, 为飞机起飞作准备的
🗣️ 情景例句
Is it supposed to rain today?
今天要下雨吗？
Only by working hard can we succeed in doing anything.
只有通过努力工作我们才能成功。
And now medical care helps to keep people alive longer.
现在的医疗保健使得人们活得更长。