threaten
英 ['θret(ə)n]
美['θrɛtn]
	    - vt. 威胁;恐吓;预示
 - vi. 威胁;可能来临
 
英英释意
- 1. pose a threat to; present a danger to;
 - "The pollution is endangering the crops"
 
- 2. to utter intentions of injury or punishment against:"He threatened me when I tried to call the police"
 
- 3. to be a menacing indication of something:"The clouds threaten rain";
 - "Danger threatens"