单词	sparse set
释义	sparse set 稀疏集
随便看	Fridenberg's card Fridenberg test card Friderichsen Friderichsen-Waterhouse syndrome Friderichsen-Waterhouse(syndrome) fridericianum fridericianums Fridericia's method Fridericsen's tests frideron frideswide fridg fridge 'fridge fridged fridge-freezer fridge freezer fridge freezers fridge-freezers fridgeful fridgefuls fridge Googling fridgeless fridge magnet fridge magnets nzdj nzdl nzdm nzdq nzds nzfe nzgc nzgk nzgm nzgz よつずもう【四つ相撲】よつだけよつだけ【四つ竹】よつつじよつつじ【四つ辻】よつでよつで【四つ手】よつであみよつであみ【四つ手網】よつで網