在公共汽车上

1. (尤指在紧急情况下)命令…出动,请求…出动
If you call someone out, you order or request that they come to help, especially in an emergency.

1. challenge to a duel

e.g. Aaron Burr called out Alexander Hamilton

2. utter aloud
often with surprise, horror, or joy

e.g. `I won!' he exclaimed
`Help!' she cried
`I'm here,' the mother shouted when she saw her child looking lost

Synonym: exclaimcrycry outoutcryshout

3. call out loudly, as of names or numbers