重点讲解：
1. be free of
无…的；摆脱了…的；
eg. She retains her slim figure and is free of wrinkles.
她保持着苗条的身材，脸上也没有皱纹0U(zPmm_hXicaAN。
eg. The brass surface must be free of contamination.
黄铜表面必须未经沾污|W%gn].*J-3IO##M6V。
2. be involved in
卷入的；参与的；与…有密切关联的；
eg. If she were involved in business, she would make a strong chief executive.
如果她投身商业的话，她会是一个很有能力的总裁%#A27+]CSD)X]。
eg. She became involved with political causes after the Chernobyl nuclear disaster.
在切尔诺贝利核泄漏灾难发生以后，她开始投身政界HisYA;nOEP。
3. scramble to do sth.
仓促行动；慌忙前往；
eg. The others may have to scramble to make much headway.
其他人可能需要互相竞争以期取得更大的进展0YvpyzO5txzg]。
eg. The players scrambled to get the ball.
球员争着去抢球7^Tml#XQB(XCbe8B7z。
4. be associated with
（与…）相关的；相联系的；
eg. Obesity is also associated with asthma.
肥胖症也易导致哮喘的发生@MnM=19@46*。
eg. Conceit is associated with stupidity and ignorance.
骄傲的朋友是愚蠢和无知&PbDTtl;v%5IwIXPb。
5. wipe out
摧毁；毁灭；使灭绝；
eg. The spill could wipe out the Gulf's turtle population.
这次原油泄漏可能会使波斯湾的海龟灭绝i~.Hyb%-Rdow*9l9]。
eg. The plague once could wipe out a village.
鼠疫曾一度可以夺走整个村庄村民的生命b9o+M.40R7x2w。
6. in place
（法律、政策、行政体系等）正在运作，就位；
eg. A strong community cannot be built until the basics are in place.
只有基本原则确立了才能建立起一个强大的团体]Vzk[~brim。
eg. We already have our core team in place.
我们的骨干团队已经就位了@s-Q_cb~Bk)。