動詞 rut:

1. be in a state of sexual excitement; of male mammals
   同義詞：rut
2. hollow out in the form of a furrow or groove
   同義詞：furrow, rut, groove

1. After being a bus driver for30 years, Jed finds himself in a rut.
   在當了30年汽車司機后杰特覺得自己的工作單調(diào)乏味。
2. Environment can sometimes alter the rut age of an animal.
   有時環(huán)境可以改變動物發(fā)情的年齡。