deadline(n.) date/time by which something has to be done最终期限

[例]  The deadline for the application is tomorrow morning.

deal 1.(n.) 1.business agreement交易

[例]  We set up a deal with our agents.

2. (v.) trade, buy and sell做生意

[例]  He deals in gold.

[同义词]  trade, bargain, negotiate

dealer (n.) person who buys and sells商人

[例]  a foreign exchange dealer

[同义词]  merchant, trader, tradesman

dear (adj.) high-priced; expensive昂贵的

[例]  a dear gift

[同义词]  expensive, costly, pricey

dear money (n) money that is difficult to borrow because of high interest rate 高利息借贷资本

[例] Government adopted the dear money policy to restrain the overhot investment in the real estate.