极拥挤

例句：

1. 1. The train was so crowded that it felt like standing in a sardine can.
   火车非常拥挤，感觉就像站在沙丁鱼罐头里一样。
2. 2. The city center is always packed with tourists during the summer holidays.
   夏天假期时，市中心总是挤满了游客。
3. 3. The bus was so full that there wasn't even room for anyone to sit down.
   公交车上人满为患，连坐下的地方都没有了。