There is no way I could ask him/her under the circumstances.
He/She was just too busy for me to ask him/her to do me a favour.
I really didn't feel I could ask a favour under the circumstances.
「とてもじゃないけど頼める状況ではなかった。」＝ There is no way I could ask him/her under the circumstances. / He/She was just too busy for me to ask him/her to do me a favour. / I really didn't feel I could ask a favour under the circumstances.
例文：
there was no way ＝ とてもじゃないが
ask, ask a favour ＝ 頼む、お願いする
under the circumstances ＝ この条件の下に、そういう状況下
too busy ＝ 忙しすぎて
feel ＝ 感じ（る）
イギリス 
