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重点讲解：
1. be equal to 同样的；相等的；
One unit of alcohol is equal to half a pint of beer.
一单位酒精等于半品脱啤酒。
2. die out 逐渐消亡；灭绝；绝种；
How did the dinosaurs die out?
恐龙是如何灭绝的？
3. result in 导致；引起；造成；
Competition can be healthy, but if it is pushed too far it can result in bullying.
竞争可以是良性的，但如果太过火，就可能造成以强凌弱。
4. fill in 填塞，填平(缝隙或孔洞)；
If any cracks have appeared in the tart case, fill these in with raw pastry.
如果饼皮开裂，就用生的油酥面团填平。
