miss a train meaning in English

没赶上火车

To realize the value of one minute , ask the person who has missed a train
欲知一分钟的价值,不妨问问那位没有赶上火车的人
However , a principle for me is that i never miss a training session due to other claims on my time
尽管如此我有我的原则：我决不会错过任何一堂训练课。
In your case , one agent ( the one who is always late ) is impatient : the risk of missing a train in half an hour is unimportant compared with the instant satisfaction to be derived from having one more sip of coffee
在你的例子中，一个行动者（经常迟到的那位）很急躁：与多喝一口咖啡所能立即得到的满足感相比，错过半小时后的火车的风险并不重要。