1. The girl was so obsessed with losing weight that she eats one meal a day. Eventually she was hospitalized for malnutrition and other health problems.2. My brother started watching Japanese anime at a tender age. He got into it so badly that he is now obsessed with it.3. Do not bear a grudge against others because hate can take you over and make you do crazy things.
 is obsessed with something takes one over「走火入魔」形容過度迷上某樣東西，obsess 就有此意，非常貼切。Hate can take you over 意思是仇恨可讓你走火入魔。
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a cain of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of glaciers, which leads to rising sea levels.