focus focus v. 集中，
force force n. 暴力，武力，力量
plays sports regularly can strengthen your immune system.
optimum adj. 最优的，最佳
optimism n.乐观，
passionate passionate adj.热情的，
although the weather today was cold and blustery , those workes still had their job done.
mediocre 平庸的，普通的
mediocre
geologist have made a major breakthrough recently.
withdraw 撤回，拿走
moderate amount of stress can be beneficial .
moderate
网友评论