firm n. 公司adj. 结实的，坚定的v. 牢固，坚定 adv. 稳固地坚定地
例句：The firm branched out quickly.
那家公司很快扩大了经营范围。
Cary insisted that we should maintain afirm attitude.
凯里坚持我们必须采取坚定的态度。
confirm vt. 确认，批准，使巩固，使有效
例句：He looked around carefully to confirm that he was alone.
他仔细地四处观望.要确认他是一个人。
verify vt. 检验，校验，查证，核实
例句：Before the bank was willing to lend George money, it had to verifythat he was the trueowner of the house.
银行先得核实乔治确是这幢房子的主人，然后才肯借钱给他。
conform v. 使一致，使遵守，使顺从;符合，相似，适应
例句：Caroline refused to conform to the normal social conventions.
卡罗琳拒绝遵从正常的社会习俗。
affirm v. 断言，确认，肯定
例句：They affirmed that Constance did quite a bit of reading.
他们断言康斯坦斯一定读了不少书。