He's a hardheaded old man.
他總是好高騖遠。
He's aiming too high.
詳解：aim high“奢望”、“逞能、逞強”。
He's overreaching himself.
He's out of his league.
他從不認輸。
That man never admits defeat.
He never admits he is wrong.
He is a sore loser.
He hates being defeated.
他討厭失敗。
He can't handle defeat.
他是個輸不起的人。
他是個難以捉摸的人。
He's very vague.
詳解：vague“不可捉摸”、“不清楚的”、“不明確的”。
He's very vague.
他是個難以捉摸的人。
He's just like my brother.
和我弟弟一樣。
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