alert

on Advanced

also on

• CEFR Mastery level (C2)?

灵敏的,警觉的, 警戒,警报, 使注意,使警觉,向...报警

• alert

  alert

  (adjective)

  灵敏的,警觉的
• alert

  alert

  (noun)

  警戒,警报
• alert

  alert

  (verb)

  使注意,使警觉,向...报警

Forms

adjective	noun	verb
alert	alert	alert