 Alley
Extension of the court by l 1/2 feet on both sides for doubles play.
单打与双打界线间空地网球场边的平行狭长地带，加宽了界内场地，可进行双打比赛
Back Alley
Area between the back boundary line and the long service line for doubles.
单打端线和双打端线之间的长地带
Backcourt
Back third of the court, in the area of the back boundary lines.
距球门最远的场地
Balk
Any deceptive movement that disconcerts an opponent before or during the service; often called a "feint."
非法假动作，不完全的或误导的动作
Baseline
Back boundary line at each end of the court, parallel to the net.
（网球场的）底线
Carry
An illegal tactic, also called a sling or throw, in which the shuttle is caught and held on the racquet and then slung during the execution of a stroke.
击出，越过，在打高尔夫球时的一击中（球）滚动（一段距离）或者超越（某个点或目标）
Court
Area of play, as defined by the outer boundary lines.
球场
Drive
A fast and low shot that makes a horizontal flight over the net.
猛击迅速或猛烈地沿地平线击扔或投（球）
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