在拥挤的地铁或公共汽车上，年轻人总是给老年人让座。
Young people always offer their seats to older people on a crowded subway or bus.
例如，即使在非常拥挤的公共汽车上，总是有陌生人为老人、孩子和孕妇们让座。
For instance, the eldly, little kids, and pregnant women are usually provided seats by strangers in the most crowded buses.
警察在拥挤的长途汽车上抓到了一个扒手。
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