彻底刷牙有助于口气清新。A thorough brushing helps to freshen up your mouth.空气稀薄清新,其间日光蒙眬,寒气逼人。The air was thin and crisp, filled with hazy sunshine and frost.她的房子光线充足,空气流通,清新整洁。Her house is light and airy, crisp and clean....
我们在海滩拾贝壳。We collected shells on the beach.退潮之后, 他们就四处去拾贝壳.When the tide ebbed, they scattered to pick sea shells.孩子们趁着赶潮的时候拾贝壳.The children collect shells when the tide ebbs....