I could not express my mood with words at the moment,
这个也够正式了
其实翻译是很多样性的,翻译除了你说的正式之外,最基本的是可读性。
At the very moment words fail to express my inner feelings.
希望能帮助你
I couldnt say a word to describ my feeling at the moment.
At this moment I can't find a word to discribe what I am trying to express.