It's actually an advanced piece of robotics that won't fetch a tennis ball.
虽然它确实不会叼回抛出去的网球，但它可是一只先进的机器狗。
The first true piece of sports equipment that man invented was the ball.
人类发明的第一样名副其实的运动器材是球。
The ball was attached to the bat with a piece of elastic.
球用一根橡皮带连在球拍上。
The first true piece of sports equipment that man invented was the ball .
第一项由人类发明的运动器材就是球。
A piece of mud adheres to a players ball.
一块泥粘在了球员的球上。
A piece of mud adheres to a players ball.
一块泥粘在了球员的球上。
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