It was a tough fight.

这是一场艰苦的战斗。

Was the chase on the balconies of the dollhouse a tough fight scene?

阳台玩偶屋的追逐格斗戏难拍吗？

Now, I understand-- I understand that we all know this has been a tough fight, but the Democratic Party is a family.

如今，我明白了——我明白大家都知道这是一场艰苦的战斗，但是民主党是一个大家庭，

We started as Allied and though we started well and executed the opening part of our plan with success it was a tough fight from that point onwards.

我们先做同盟军。尽管开局顺利，我方也取得了开场的优势，但是当比分针锋相对地减少证明了这是一场艰苦的战斗。