口で人に物を説明するのって苦手なんですよね。
「あれを言わなきゃ、あ、これも言わなきゃ！」と言いたい事を整理する前に言っちゃうので、よくわからなくなります。
中学時代に「おまえの説明には通訳が必要だ」と先生にもよく言われました。

I'm not good at explaining things verbally to people. I keep thinking, "I've got to tell them this—oh, and I've got to tell them that." I end up saying things before I've organized what I want to say, and I become hard to understand.

When I was in middle school, the teachers often told me, "Your explanations need an interpreter."