He practiced saying his speech over until he was letter-perfect.
他练习背诵自己的演说稿，直到把它完全记熟。
practicing is tiresome, but stick with it and some day you will be a good pianist.
练琴是叫人很厌烦的，但继续练下去，终有一天你将成为一位好钢琴家。
If you keep practicing like that you'll soon be up with me.
如果你坚持那样练习，你很快就会赶上我的。
