slipstream
noun /ˈslɪpstriːm/
/ˈslɪpstriːm/
[singular]- the stream of air behind a vehicle that is moving very fast
（高速行驶的交通工具后面的）滑流，低压气穴 - He was riding in the slipstream of the cyclist in front.
他正骑在前面骑车人的滑流中。
- He was riding in the slipstream of the cyclist in front.