less than的用法：less than后面可接形容词、数词等，意为不到，小于，少于，具有否定意义。less than连起来意思是少于，不多于，中间加形容词表示比较级。搭配：no less than不亚于、no less..than不少于。
less than的例句：The marriage had lasted for less than two years（这段婚姻维持了不到两年）；Peterson was let go after less than two years（不到两年彼得森就被解雇了）。
