试题题干
concentrate的意思是（ ）
参考答案
正确答案：
试题解析
concentrate v.集中；聚集；浓缩；专心 n.浓缩物
例句：It was up to him to concentrate on his studies and make something of himself.
句意：他能否专心学习并有所成就取决于他自己。
concentrate的意思是（ ）
concentrate v.集中；聚集；浓缩；专心 n.浓缩物
例句：It was up to him to concentrate on his studies and make something of himself.
句意：他能否专心学习并有所成就取决于他自己。