You didn't pull the suitcase lengthwise; you pulled it widthwise, so it gave you a stable base.

你不用竖着拖行李箱;,而是可以横着拖，这样拖起来更稳。

耶鲁公开课 - 金融市场课程节选

"For the first show in Mumbai, we were told we should probably take our passports and a suitcase of clothes as we didn't know if the play would be allowed to go until the end, because the theatre might be stormed, " says Ms Akerkar.

BBC: Vagina Monologues challenges India's taboos

So, you know, my mom said that when I was born in India, they didn't have a bed for me so I slept in a suitcase with the lid propped open.

NPR: Another Look at the Immigration Debate