名詞 stiff upper lip:

1. self-restraint in the expression of emotion (especially fear or grief)

1. In spite of all the criticism he received, he kept a stiff upper lip and said nothing.
   盡管他受到很多的批評，但他仍然鎮(zhèn)定自若，沒有說什么。
2. Nigel always keeps a stiff upper lip, so that it's impossible to know what he really feels about anything.
   奈吉爾在逆境中總是保持著冷靜，因此要想知道他真正的想法是不可能的。