the least expensive这是什么句式 the least+形容词?

the least expensive这是什么句式 the least+形容词? 有没有 the least expensive 这种形式 有没有the least expensive 这种用法 he chose the least expensive one the least This is the least expensive sports suit.这衣服究竟贵不贵, at least与at the least the least possible number? the least interesting翻译 not the least of not in the least the least important