Those murmurs to be translated in each foreign language. Some languages might not be able to abbreviate words in a certain case or not. I don't know, so I put them in parentheses. If it's possible to abbreviate, then leave parentheses and translate, please. And/or rephrase it when it's necessary:

Only Jokovic is stable and strong. -只有Jokovic稳定和强大。/ Jokovic仅是稳定和强大。/ 仅Jokovic是稳定和强的。
(I'm) Bored. -百无聊赖。/ 镗孔。/ 不耐烦。
Are you afraid? -你害怕吗？/ 您是否是？
Well, we'll see. -好了，我们拭目以待。/ 好了,我们就会看到。/ 那么，我们将看见。
I don't know about this. -我不知道这件事。/ 我不知道这一点。/我不知道关于此。
I'm not convinced at all. -我不相信的。/ 我根本没有被说服。