“拱起”造句

猫看见那只狗时拱起了背.
The cat arched her back when she saw the dog.

猫看到狗,便把背拱起.
The cat arches its back when It'sees the dog.

那猫看见狗时就拱起了背。
The cat arched its back when it saw the dog.

• #拱起