drop-in
adj. 可随时造访的; 无须预约的 ; 免费提供信息和帮助的
Drop-in centres or services provide information and help for people with particular problems, usually on a free and informal basis.
...a drop-in centre for young mothers.
年轻妈妈们的活动中心
The drop in travel is bad news for the airline industry.
旅游热降温对航空业来说是个坏消息。
He was prepared to take a drop in wages.
他已做好心理准备接受降薪。
Why not drop in for a chat?
为什么不过来聊聊天呢?
Whenever I'm up there I always drop in.
每次我到那儿都会顺便去看看。
A small drop in the inflation rate was cold comfort for the millions without a job.
对数百万失业者来说,通货膨胀率的微降是不起作用的安慰。