(1) She wore a badge saying ‘Vote for Coates ’.
(2) All employees have to wear name badges.
(3) the school badge

(1) Two businessmen have been kidnapped by terrorists.
(2) The kidnappers are demanding a ransom of $1 million.
(3) [不可数名词, 可数名词]He admitted the charge of kidnap.

(1) to arouse/cause controversy
(2) a bitter controversy over/about the site of the new airport
(3) the controversy surrounding his latest movie

(1) spoken/written discourse
(2) discourse analysis
(3) He was hoping for some lively political discourse at the meeting.

(1) Police ejected a number of violent protesters from the hall.
(2) Used cartridges are ejected from the gun after firing.
(3) The pilot ejected from the plane and escaped injury.

(1) Some of the studies show positive results, whereas others do not.
(2) Pensions are linked to inflation, whereas they should be linked to the cost of living...
(3) whereas the population of working age increased by 1 million between 1981 and 1986, today it is barely growing.

(1) [不可数名词]a threshing machine
(2) The corn was still sown, cut and threshed as it was a hundred years ago.
(3) Abdominal law: Inspiratory when loosen abdominal muscle, expiratory when contractive abdominal muscle, such thresh 3 minutes.