He was last seen on the 10th floor, heading upward, shortly before the tower collapsed.

他最后一次被人看见是在第10楼，正往上冲，就在大楼坍塌不久前。

youdao

Workers stand near the collapsed 13-floor building, which toppled Saturday from its foundations, leaving the floors largely intact and even some windows unbroken.

工人们站在倒塌的13层大楼附近。

youdao

The next morning, exhausted from sleeping on an airport floor, collapsed in our tent, my brother and I went to sleep but my cousin just kept on reading.

第二天早上，精疲力尽地从飞机场候机大厅的睡梦中起来，躺在我们的帐篷中，我和我哥哥都睡觉了，但是我的侄子仍然在读书。

youdao

But as the house's floor collapsed, a sheriff's deputy pulled him to safety, while his brother remained trapped below.

CNN: SHARE THIS

In a separate accident, a loading area floor collapsed and three more died.

BBC: Ramsgate demo as MPs about to debate live exports

During cabin pressurisation tests, one of the jet's cargo doors blew open and a large section of the cabin floor collapsed.

BBC: Dreamliner trouble: A brief history of airliner problems