n. 杂技演员, 见风使舵的人
The watchers held their breath as the acrobat crossed the tightrope.
An acrobat is the only person who does what everyone else will like to do- pats himself on the back.
One that tumbles, especially an acrobat or a gymnast.
The audience held its/their breath as the acrobat walked along the tightrope.