The prospect of so much work filled him with consternation. 一想到要做这么多事，他心里惊恐不已。
To his consternation, when he got to the airport he found he'd forgotten his passport. 让他惊惶失措的是，到机场后他发现自己忘了带护照。
Synonyms: alarm (WORRY)concern (WORRY)distress preoccupationworry