continuum n. 连续时间
短语decision-making continuum 决策维持性
contract n. 合同，契约
v. 订约;承包
短语draw up a contract 草拟合同
negotiate a contract 缔结契约
make a contract with 与……签定合同
例The contract still holds.
契约仍然有效。
The firm has contracted to build a double-purpose bridge across the river.
他们公司已签约承建一座横跨大江的两用大桥。
Under the contract the building work must be completed within eighteen months.
按照合同，该建筑工程必须在18个月之内完工。
contractor n. 承办商，承建人
短语general contractor 总承包者，建筑公司
prime contractor 总承包人
project contractor 工程承包
contribute v. 提供;捐献
短语contribute to several charities 捐助一些慈善团体
例She seldom contributes to the discussion.
她在讨论中很少发言。
contribution n. ①贡献，捐献 ②税
短语additional special contribution 额外特别捐款
fiduciary contribution 信托投资
general average contributions 共同海损分担额
joint contribution 共同出资
profit contribution 毛利
