世知辛い世の中だ。
This is a rough world we are living in.

急いで書かれたので、彼の手紙は読みづらかった。
Having been written in haste, his letter was hard to read.

とにかく、言いづらい事を打ち明けてくれてうれしいよ。
Anyway, I'm glad you were able to broach this difficult subject.

質問がとても分かりづらく、彼らは皆混乱してしまいました。
The question was so complicated that they were all mixed up.