Before a child can learn a musical instrument he or she first needs to acquire the necessary manipulative skills.儿童首先要掌握一些必需的操作技能，才可以学习一门乐器。Fast, accurate keyboard skills are essential in most jobs these days.如今，快速准确的键盘操作技能对大多数职业来说都非常重要。I hope this course will help me sharpen my computer skills.我希望这门课程能帮助我提高电脑操作技能。