https://online2.tingclass.net/lesson/shi0529/0008/8532/p72.mp3
https://image.tingclass.net/statics/js/2012
He could not come up with a proper answer.
他想不出一個(gè)合適的回答。
come up with指趕上,但這里指(針對(duì)某問題)想出。
Mum always comes up with great ways to celebrate our birthdays.
媽媽總是想出好的辦法來為我們慶祝生日。