cod
n
(pl unchanged 复数不变)
1 (also `codfish) [C]
large sea fish 鳕.
2 [U] its flesh eaten as food (食用的)鳕鱼肉.
COD
1 (Brit) cash on delivery 货到付款.
2 (US) collect (payment) on delivery 货到收(款).
He always takes pride in his work.He's very efficient.
他总是以他的工作而自豪,他是非常能干的。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.