It seems like your sentence got cut off at the end. If you're trying to express an opinion about whether or not to undertake a particular action, you might say something like:

"You can do it if you want to, but in my opinion, it's not worth the effort/time/trouble."

If you'd like to finish your thought or provide more context, I'd be happy to help you refine your statement!

You can do it if you want to, but in my opinion it's not worth the_____ it involves.

A effort

B attempt

C force

D strength

A

解析

【翻译】如果你想做的话你可以做，但我认为它不值得浪费精力。 [考点] 词义辨析 【精析】A effort：努力，精力； attempt：企图，尝试； force：力量，武力； strength：力量，力气。根据句意可知，选A。