He made strenuous efforts to improve his reading.他奋发努力提高阅读能力。Alf made strenuous efforts to improve his reading.阿尔夫为了提高阅读能力付出了巨大的努力。He made strenuous efforts to save her.他竭尽全力去救她。The government is making strenuous efforts to reforest the hills.政府正作出艰苦的努力在山上重新造林。