这组词都有“小心的,谨慎的”的意思,其区别是:
cautious: a.细心的,谨慎的。
➤ He has a cautious attitude about spending money.
在花钱的问题上他态度谨慎。
considerate: a.关心他人的,体贴的。
➤ He is always considerate of others; he is kind and sympathetic.
他总是很体谅他人,并且慈祥而富有同情心。
alert: a.警惕的,留神的。
➤ The hostess remained standing, alert to every guests' drinking need.
女主人一直站在旁边,时刻准备给大家斟酒。