Noncontractual
非契约的
🗣️ 情景例句
He had a great capacity for learning.
他的学习能力很强。
How long will you remain out?
你将会在外面逗留多久？
As the floods had put the telephone out of order, we could not find out how they were managing.
由于洪水造成了电话中断，我们无法了解他们情况。