pièce de résistance
noun
in sing.
- (especially with reference to creative work) the most important or remarkable feature(尤指原创性作品的)最重要(或最显著)特点:
the pièce de résistance of the meal was flaming ice cream.
这顿饭的主要特色是火烧冰淇淋。
词源
French, literally 'piece (i.e. means) of resistance'.