重点讲解：
1. hang out
闲逛，逗留；
eg. I often used to hang out in supermarkets.
我过去经常在超市里逛个没完。
eg. We can just hang out and have a good time.
我们可以只是闲逛一下，开开心。
2. it depends
视情形而定；看情况；
eg. 'But how long can you stay in the house?' – 'I don't know. It depends.'
“但你能在这所房子里呆多久呢？”——“我不知道，这要看情况。”
eg. But it really depends. It depends on whether there is any special offer or end of the season sale or mid-season sale going on or not.
但这也要看情况，通常取决于是否有特别的邀请或者季末、季中打折。
