concentrate:v“集中（注意力，努力等于…）； 专心，专注” e.g. a.Although his son was seriously ill,he concentrated his energies on studying. 尽管儿子病得很严重，他还是把精力集中在研究 上。 b.It's very noisy outside.I can't concentrate on my work. 外面太吵，我无法专注工作。 concentrate: v. “集中（注意力，努力等于······）； 专心，专注” e.g. a. Although his son was seriously ill, he concentrated his energies on studying. 尽管儿子病得很严重，他还是把精力集中在研究 上。 b. It’s very noisy outside. I can’t concentrate on my work. 外面太吵，我无法专注工作