1.make good on 兑现，实现
例句：You should make good on your own words.
你要实现自己的诺言17mt2B62.n)_xF。
2.playback controls 播放控制
例句：This lack of physical playback controls would be easier to overlook if the new nano included Apple’s Earphones with Remote and Mic.
要是新款 nano 带有苹果的无线耳机和麦克风的话，缺少物理的播放控制就可以轻松克服了a%si!qJ,5lN。