The cat chased the rat through the alley.
猫在小巷里追逐那只老鼠。
She was startled by the sight of a rat in the kitchen.
她被厨房里看到一只老鼠吓了一跳。
The rat quickly disappeared into the hole in the wall.
那只老鼠迅速消失在墙里的洞中。
Scientists often use the rat in laboratory experiments.
科学家们经常在实验室实验中使用老鼠。
A rat can squeeze through very small openings.
老鼠可以通过非常小的缝隙挤进去。
The town was overrun by a plague of rats.
这个小镇被老鼠的灾害侵扰。
He set a trap to catch the rat that was eating his food.
他设了一个陷阱来抓住偷吃他食物的老鼠。
The rat scurried across the floor when the light came on.
灯一亮，老鼠就匆匆跑过地板。
A rat can gnaw through wood, plastic, and even concrete.
老鼠可以咬穿木头、塑料，甚至混凝土。
The children were fascinated by the pet rat in the cage.
孩子们对笼子里的宠物老鼠感到非常好奇。
rat race
激烈竞争；你死我活的竞争
smell a rat
怀疑事情不妙, 感觉情况不对
sewer rat
褐家鼠
Wistar rat
威斯塔鼠，（实验用的）大白鼠
water rat
水鼠
复数: rats;
