21 - alarm, alarming etc
21.1 alarm ( v. ) 使驚恐, 使擔心 I did not want to alarm Joyce by telling her that Christina is ill. 21.2 alarm ( n. ) 警鐘, 驚恐, 警報器 21.3 alarming ( adj. ) 使人驚恐的 There has been alarming news in the earthquake. 21.4 alarmingly ( adv. )