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.,After going home yesterday, I seemed to have forgotten about this walnut again, only remembering it today.,Having said that, he tossed the walnut shells in his hand aside, quickly put on his clothes, and went out.。