重点讲解：
1. keep a lid on 限制；抑制；隐瞒；
The soldiers' presence seemed to keep a lid on the violence.
士兵的存在似乎抑制住了暴力活动!UG@_(edBh7fPaD。
2. be attuned to 适应的；理解的；与…合拍的；
Their ears were still attuned to the sounds of the London suburb.
他们依然很熟悉伦敦市郊的喧闹声*7.XRmGzkwKNDy8。
3. phase out 逐步淘汰；逐步放弃；
They said the present system of military conscription should be phased out.
他们说，当前的征兵体系应当逐步废除0N42Cie+zl06。
4. not out of the woods 仍未摆脱困境(或问题)；
The nation's economy is not out of the woods yet.
该国经济尚未摆脱困境MJiTJ|q^C~6)qS。