网络教学工具:give up\ give in什么意思?

give up\ give in什么意思? give off give out give up give in 是什么意思 “never give up！”是什么意思？ give up 的用法？ never give up```fighting````` give up如何使用 give in ,give up 的区别？ never give up,never give on ,never give never never give up never give up 怎么念？ don't give up never give up怎么念