基本解释皮带轮同根派生 Belt-pulley相关词英汉例句The belt started wrapping up on the tractor pulley.皮带开始绕在拖拉机的皮带轮上。Attach the pulley which is held by hand with screws.用螺丝安装皮带轮的手持部分。Belt-pulley更多例句