重点讲解：
1. when it comes to 谈到；涉及；
When it comes to pollution, the chemical industry is a major offender.
谈到环境污染问题，化工产业是一大祸害McAG|Al0ULTguW%Y6。
2. and so on 及诸如此类；等等；
They sell a wide range of domestic appliances ─ washing machines, dishwashers and so on.
他们出售各种家用电器——洗衣机、洗碗机等等SG@rpin;&z6Xc。
3. to a large degree 在很大程度上；
The upgrading of regional competitiveness to a large degree, depends on the competitive level of local industry.
区域竞争力的提升很大程度上取决于区域产业的竞争力水平[Md*4z|X2P-vsYay9。
4. fall off (从接合处)脱落，掉落；
When your exhaust falls off, you have to replace it.
如果你的排气管脱落，应将其更换-[ak0yh=(mT1-JN8wQ。