VERB 使紧张;使慌张 If you fluster someone, you make them feel nervous and confused by rushing them and preventing them from concentrating on what they are doing. 使紧张;使慌张
The General refused to be flustered. [beVERB-ed]
将军没有乱了方寸。
She was a very calm person. Nothing could fluster her. [VERB noun]