没必要惊慌——一切都在掌控之中。

There's no need for ___alarm — everything is under control.

她镇定的存在帮助他们驱散了恐慌感。

Her calming presence helped to dispel their sense of ___alarm.

当他意识到文件不见了时，一阵突如其来的恐慌攫住了他。

A sudden feeling of ___alarm gripped him when he realized the documents were missing.