focus focus v. 集中,
force force n. 暴力,武力,力量
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








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