If you are delighted, you are extremely pleased and excited about something.
双语例句
例：
I know Frank will be delighted to see you.
我知道弗兰克见到你会非常高兴。
2.?乐意的
If someone invites or asks you to do something, you can say that you would be delighted to do it, as a way of showing that you are very willing to do it.
双语例句
例：
'You have to come to Todd's graduation party.'—'I'd be delighted.'