如果你愿意夜间飞行，就能买到便宜得多的机票。

If you___'re ___willing ___to fly at night, you can get a much cheaper ticket.

你愿意去那家餐馆找我的手表吗？

Would you ___be ___willing ___to go to the restaurant and find my watch?

如果需要，我愿意帮忙。

I___'m ___willing ___to help if needed.