He could not come up with a proper answer.
他想不出一个合适的回答。
come up with指赶上，但这里指（针对某问题）想出。
Mum always comes up with great ways to celebrate our birthdays.
妈妈总是想出好的办法来为我们庆祝生日。
He could not come up with a proper answer.
他想不出一个合适的回答。
come up with指赶上，但这里指（针对某问题）想出。
Mum always comes up with great ways to celebrate our birthdays.
妈妈总是想出好的办法来为我们庆祝生日。
