1. The number of deer(鹿) and kangaroos(袋鼠) is reducing(减少) at an alarming rate due to (由于) the loss of their habitats.
2. They caught a lot of insects(昆虫) that are harmful to people with their net(网). Meanwhile, they try to protect dolphins (海豚) and koalas (树袋熊).
3. The doctor told Tom that he suffered an unusual(不寻常的) skin(皮肤) illness. Tom lost control of his emotions(情绪) and cried.
