honker

例句：

1. 1. The honker is the heart of the aircraft.
   喷气式飞机的发动机是其心脏。
2. 2. The engine roared to life as the plane took off.
   飞机起飞时发动机轰鸣着启动了。
3. 3. The lion roared loudly in response to the hunter's approach.
   狮子对猎人的到来大声咆哮。