Definition
At the very end of the day, just before going to sleep.
每天最後的時刻
I usually check all the doors and windows are locked last thing at night.
我通常會在睡前最後一件事檢查所有的門窗是否鎖好。
She always reads a few pages last thing at night before sleeping.
她總是在睡前最後一件事讀幾頁書。
I always leave packing my luggage to the last thing, usually just before bed.
我總是把打包行李留到最後一件事，通常就在睡覺前。