phrasemainly UK at the latest time in the day: 在一天的最后 I'll switch on the washing machine last thing so it'll be finished when I get up in the morning.晚上睡觉前我会开启洗衣机，这样等我早晨起床后衣服就洗好了。 You should avoid drinking coffee last thing at night. I do my exercises first thing in the morning and last thing at night. He usually calls me last thing, just before he goes to bed. It's not a great idea to have difficult conversations last thing. See also