1. threaten vt.危及; 恐吓; 预示(某事)
例句:Black clouds threaten a storm.
乌云是暴风雨的先兆。
2. promise vt.允诺,许诺; 给人以…的指望或希望;
例句:'I won't, I promise you, 'said Phyl earnestly and humbly.
“我不会,我答应你,”菲儿诚恳地、虚心地说。
3. protect vt. 保护,保卫; 贸易保护;
例句:Game laws protect wild life.
狩猎法保护野生动物。
4. reject vt.拒绝; 排斥; 抛弃
例句:Many serious thinkers reject relativism because of this implication.
许多严肃的思想家因此否定相对论。