canny
adj.精明的(shrewd,cunning);节俭的
economical
adj.节约的，经济的(thrifty)
Purchasing clothing that will only be worn once is not very economical.
购买只穿一次的衣服不太经济。
economize
vi.节俭(save,cut costs)
When they bought a house, the family had to economize to pay their mortgage.
他们买了一所房子后，不得不节衣缩食来支付他们的抵押贷款。
frugal
adj.节约的(thrifty,economical)
stoically
adv.淡泊地(impassively)
thrift
n.节约(economy,frugality)
retrench
vi.紧缩，节约(save)
abstemious
adj.有节制的，节约的
An abstemious way of life is what the old man is fond of.
老人喜欢节约的生活方式。
sparing
adj.节俭的(frugal,thrifty,economical);保守的
parsimonious
adj.吝啬的，节俭的
cautious
adj.小心的，谨慎的
Be cautious when you approach strangers.
当你接近陌生人时要小心。
circumspect
adj.慎重的，小心的(prudent,cautious)
Never very circumspect in expressing his views, Bill annoyed almost everyone at the party.
比尔在表达观点时从不谨慎，几乎惹恼了聚会上的每一个人。
composed
adj.沉着的
composure
n.镇静(calmness,self-control)
The irrate customer lost his composure and yelled at the clerk.
那个讨厌的顾客失去了镇静，对店员大吼了一声。
conservative
adj.保守的(modest,cautious)
A conservative estimate of the cost to repair the car is $100.
保守估计修车的费用是100美元。
discreet
adj.慎重的，谨慎的( prudent,cautious)
You can tell Jane anything; she is very discreet.
你可以告诉简任何事，她非常谨慎。