Listen Read Learn Every year, some place in the world, an accident involving an airplane occurs. These accidents are painful because of great numbers of passengers that they carry. Although these are few in number, a great, many people die when even...
每年，在世界的某些地方都会发生飞行事故。 Listen Read Learn Every year, some place in the world, an accident involving an airplane occurs. These accidents are painful because of great numbers of passengers that they carry. Although these are few in n...
