Number + 身 + Noun
The classifier 身 (shēn) is used to quantify skills, abilities, or sets of clothing that a person possesses or wears. When used with skills, it conveys that someone has a full repertoire of a particular ability. When used with clothing, it refers to an entire outfit.
他练了一身好功夫,没人敢欺负他。
tā liàn le yī shēn hǎo gōngfu, méi rén gǎn qīfu tā.
He has trained himself in excellent martial arts skills, and no one dares to bully him.
她今天穿了一身红色的衣服,特别好看。
tā jīntiān chuān le yī shēn hóngsè de yīfu, tèbié hǎokàn.
She wore an outfit all in red today — she looks especially nice.
爷爷有一身种菜的本领,院子里什么都种得好。
yéye yǒu yī shēn zhòng cài de běnlǐng, yuànzi lǐ shénme dōu zhòng de hǎo.
Grandpa has a full set of vegetable-growing skills — everything in the yard grows well.