175. as clear as crystal 一清二楚
A: Something is wrong with the accounts. B: Nope. They’re as clear as crystal. -这些账目有问题。 -不，它们一清二楚。 176. ascribe (vt.) 把……归因(于)
He ascribes his success to skill and hard work. 他把他的成功归于技能和努力的工作。
177. bulwark (n.) 堡垒,壁垒
The soldiers kept their heads down behind the bulwark. 士兵们低头隐蔽在堡垒的后面。 178. go one's own way 一意孤行
A: The wayward girl is a great trouble to her parents. B: Absolutely. She is always going her own way. -那叛逆的女孩让她父母非常头痛。 -对极了，她总是一意孤行。
179. dubious (a.) 怀疑的，暧昧的，含糊的
She looked around this way and that in a dubious manner. 她以一种怀疑的态度看着四周。 180. facet
(n.) (问题等的)一个方面
Selfishness was a facet of his character that we seldom saw before. 我们以前很少看到他个性中自私的一面。
181. go to pot 一落千丈
A: How about your son's schoolwork?
B: It has gone to pot. He really lets me down. -你儿子的课业如何？ -一落千丈。他实在令我失望。
