跟上

1. 他走得太慢而不能跟上我。
   He walked too slowly to catch up with me.
2. 他在学习上有些困难，但在同志们的帮助下，他已跟上班上的功课了。
   He has some difficulties in his study, but with his comrades' help he has kept up with the class.
3. 对一个公司来说，能跟上市场的发展是很重要的。
   It's important for a firm to keep pace with changes in the market.
4. 汤姆必须迈大步才能跟上他的父亲。
   Tom has to take long steps to keep pace with his father.
5. 我认为跟上时代是很重要的。
   I think it important that we keep up with the times.

上的英语翻译：