这是一个繁华的市场。

It is a ___busy market.

医生们整个上午都在手术室里忙个不停。

The doctors were ___busy in the operating room all morning.

商场周末总是人山人海。

The mall is always ___busy on weekends.

这张海报太花哨了，到处都是小图案。

The poster looks too ___busy with tiny patterns everywhere.

我打了好几次电话，但线路一直占线。

I called several times, but the line was ___busy.