Pythons kill by tightening their coils so that their victim cannot breathe.
蟒蛇捕杀时紧紧盘成圈，使猎物无法呼吸。
《柯林斯英汉双解大词典》
2
Pythons mainly feed on birds and small mammals.
蟒主要吃鸟和小的哺乳动物。
3
If there are no truly non-venomous snakes, were the so-called non-venomous snakes, like constrictors and pythons, were they venomous at some point in their evolution?