n. condition of heightened watchfulness or preparation for action
n. a warning serves to make you more alert to danger
a. engaged in or accustomed to close observation
s. quick and energetic
词态变化
过去分词:alerted
过去式:alerted
现在分词:alerting
第三人称单数:alerts
复数形式:alerts
常见例句
1
a warning serves to make you more alert to danger a
2
plural of alerter
3
n a state of readiness to respond n a warning serves to make you more alert to danger v warn or arouse to a sense of danger or call to a state of preparedness
4
n condition of heightened watchfulness or preparation for action n a warning serves to make you more alert to danger n an automatic signal (usually a sound) warning of danger v warn or arouse to a sense of danger or call to a state of preparedness
5
v call forth (emotions, feelings, and responses) v stop sleeping v summon into action or bring into existence, often as if by magic v cause to be alert and energetic v cause to become awake or conscious v to begin moving, "As the thunder started the sleeping children began to stir" v stimulate sexually
