跟不上的英文

实用例句

• 他感到跟不上时，便溜之大吉了。
  When the pace got too hot for him, he disappeared.
• 计算机技术的各种改进有些我已跟不上了。
  I can't keep up with all the changes in computer technology.
• 爬山时，他们跟不上我们。
  They could not keep up with us when we climbed the mountain.