"行李"用英语读作 "luggage".
这个词来自英语单词"lug"和"gage"的组合，"lug"表示"拉"或"搬运"，"gage"表示"物品"或"道具"。所以"luggage"就表示"搬运的物品"或"旅行用品"。
I had to check my luggage at the airport. (我在机场把我的行李托运了。)
We need to buy a new luggage because the old one is broken. (我们需要买一个新的行李箱，因为旧的坏了。)
The luggage compartment on the train was full, so we had to put our bags on the seat. (火车上的行李舱满了，所以我们不得不把包放在座位上。)