例句：
Would you be kind enough to close the window?
请把窗子关上好吗？
I couldn't get close enough to see.
我无法靠得很近去看清楚。
He couldn't get close enough to see.
他无法靠近看个清楚。
There aren't enough books for everyone to have one each.
书不够给每人发一本。
Tell them it's just not good enough.
告诉他们这确实不够好。