捏一把汗

Explanation: For fear of the hands sweat. Described as very tense mood. 　　Source: Cao Xueqin, "Dream of Red Mansions," the 62nd back to Aunt Zhao Because private grants a lot of things Choi was Yuchuan Er noise out, perpetrated against Charles interrogate them, find out a letter every day worried about the direction children. " 　　Examples: At first, I really for the kids ~, until dug up a cauldron of gold, That feel relaxed. ★ Lu Xun's "Old Topic of Filial Piety map"