1·We hear a louder growl. Guess who is growling?
我们听到了一声更大的咆哮。猜猜是谁在咆哮？
2·Just at that moment, the animals in the zoo began to growl.
就在那一刻，动物园里的动物们开始咆哮。
3·Now I growl when I'm pleased, and wag my tail when I'm angry.
现在我高兴时就咆哮，生气时就摇尾巴。
4·If the dog's hackles are up, gives a low decibel growl, or engages in a predatory, stalking posture, then there is probably a danger in the environment.
如果狗颈部的毛都竖立起来，或是它发出低分贝咆哮，或是呈掠夺、跟踪姿势，那么周围肯定存在危险。
5·Then we hear a louder growl. Guess who is growling?
然后我们听到了一声更大的咆哮。猜猜是谁在咆哮？