watchful

engaged in or accustomed to close observation

密切观察的从事或习惯于密切观察的

caught by a couple of alert cops

被几个警觉的警察抓住了

alert enough to spot the opportunity when it came

足够的警觉来发现机会

constantly alert and vigilant, like a sentinel on duty

像值班哨兵一样，时刻保持警觉和警觉

alert

experiencing or accompanied by sleeplessness

失眠的经历或伴有失眠的

insomniac old people

失眠症老人

insomniac nights

失眠之夜

lay sleepless all night

整夜不眠

twenty watchful, weary, tedious nights”- Shakespear

二十个警惕、疲倦、乏味的夜晚”—

insomniac

sleepless