jumping hours jumper maintaining plate跳: jump; leap; skip; bounce时: shí]杆: shaft; rod; bar跳时: thtime hoppingg; time hopping定时杆: timing lever下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:跳时杆压板,即可在微信中查询翻译