slipstream

/ˈslɪp.striːm/

名词

（高速行驶的汽车、飞机后的）气流，滑流
The cyclist stayed close behind the speeding car, riding in its slipstream to reduce wind resistance and increase their speed.
骑自行车的人紧跟在飞驰的汽车后面，利用其气流来减少风阻，增加速度。