old-fashioned or not keeping up with modern ideas
过时或未跟上现代思想
"My uncle still uses a typewriter—he’s behind the times."
"我的叔叔仍然使用打字机——他 跟不上时代。"
to keep something at a low level
to make people notice something immediately
to stay focused on your goal
to continue with progress after a delay or challenge
showing maturity or wisdom greater than expected for one’s a...
to continue working even when you are tired or out of energy
