be terrible at (doing)...

不擅长...

I'm terrible at doing the research.

我不擅长做研究。

have a good taste

品位好

You really have a good taste in clothes.

你的衣品真好。

A: Hey, Lily. You got the free time?

嘿，莉莉，你有空吗？

B: Sure. What's up?

有，怎么了？

A: I just want to ask if you're free this Friday.

想问问你这周五有时间吗？

B: I guess so, why?

有吧，什么事？

A: I have to go shopping, which I hate. I'm terrible at picking up clothes. You have great taste, so could you go with me?

我最讨厌买衣服了，根本不会挑，可又不得不去。你的品位很棒，能跟我一起去吗？

B: Sure. 

当然。