The service was too slow.
服务太缓慢了。
A Ping and I went to the new Italian restaurant last week.
A 平和我上周去了一家新开的意大利餐馆。
B I was there last month. I thought it was fantastic.
B 我上个月去了那里。我认为那里非常棒。
A Yes, the food and the atmosphere were great.
A 是的，饭菜和环境都非常好。
B But there was one thing I didn't like. The service.
B 但是有一样我不喜欢。那就是服务。
A It was a bit slow, I suppose.
A 我觉得那里的服务有点慢。
B I thought the service was too slow.
B 我认为那里的服务简直太慢了。
.
Notes注释
1 To criticise one thing when everything else is OK, for example the service, in a restaurant, you can say: There was one thing I didn't like. / There was one thing I didn't like. / The service. / The service.
要批评某事的某一方面，而其他方面都不错，比如，一家餐馆的服务，你可以说：There was one thing I didn't like. /有一样我不喜欢。/ The service. /那就是服务。
2 To agree, without being over-critical, you can say: It was a bit slow, I suppose. / It was a bit slow, I suppose. But to state the criticism strongly, you can say: The service was too slow. / The service was too slow.
要表示同意，但态度又不想过于批评，你可以说：It was a bit slow, I suppose. /我觉得那里的服务有点慢。但是要表示强烈的批评，你可以说：The service was too slow. /我认为那里的服务简直太慢了。

Key phrases and sentences
Ping and I went to the new Italian restaurant last week.
I was there last month.
I thought it was fantastic.
Yes, the food and the atmosphere were great.
But there was one thing I didn't like. The service.
It was a bit slow, I suppose.
I thought the service was too slow.

平和我上周去了一家新开的
意大利餐馆。
我上个月去了那里。
我认为那里非常棒。
是的，饭菜和环境都非常好。
但是有一样我不喜欢。那就是服务。
我觉得那里的服务有点慢。
我认为那里的服务简直太慢了。