The steamer arrived at the quay with the tourists packed like sardines.

汽船驶抵码头， 船上的旅客拥挤不堪。

《新英汉大辞典》

We were packed like sardines in the train.

我们在火车里被挤得像沙丁鱼一样。

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