keep a close eye on (idiom) - to watch closely - ดูอย่างใกล้ชิด Articles found: Soldiers watch for Aug 25 transport sponsors (16/08/2017) Van operators threaten to stop service over new traffic rules (29/03/2017) Northern Industry unfazed by floods (17/08/2016) What's new in business news: April 2, 2015 (02/04/2015) 1,500 more traffic cameras coming soon (16/09/2014)