It is the summer vacation now, and we are actively contributing to the infrastructure development of this city, adding bricks and mortar to its growth. Of course, that's just figurative language; in plain terms, it means doing manual labor.,A burst of sound traveled into Wang Ming's ears, and immediately, Wang Ming broke into a happy smile.,This coming and going, though short in time, left Wang Ming drenched in sweat. Without a word, he went straight back into the corner bathroom and toilet combination.。