You're packed in like sardines on a subway, train, or bus.

在地铁、火车或巴士上挤沙丁鱼。

youdao

It was terribly crowded there. We were packed in like sardines.

这儿太挤了，我们像沙丁鱼一样地挤着。

youdao

All of us were packed like sardines in the train to Beijing.

在去北京的火车上我们大家挤在一起，像沙丁鱼似的。

youdao

It is so crowded that we are packed like sardines - just like small fish in a can.

VOA: special.2011.02.27

Mike Vasey of Cheyenne, Wyoming says even some normal-sized people can't fly comfortably when they are packed in the cabin like sardines.

CNN: Airline policies juggle larger passengers

One of the center squares contained a newly discovered pillar with the most intricate bas-reliefs to date: rows of sinuous-necked cranes and snakes packed efficiently together, like sardines in a can.

NEWYORKER: The Sanctuary

Recently, two women were arrested for transporting more than 140 dogs across country, dogs packed into small cages together without food or water, zip tied into crates crammed in like sardines in an enclosed moving truck.

FORBES: Westminster, "Show Dog," and the Battle Over Purebred Puppies