英语翻译1.如果你在公交车上碰到老人应该让座 2.当你买东西的时候人多应该排队3.在大街上不能随地吐痰翻译成英语的 意思

You should offer your seat to the elderly on the bus.
You should stand in a line when you are shopping.
Don't spit everywhere in the street.