ControUed-release BB fertilizer

英 美
  • 控释BB肥
  • BB abbr.滚珠轴承(=ballbearing)abbr.升压电池组(=boosterbattery)abbr.预算局(=BudgetBureau)abbr.蓝皮书(=bluebook)
  • fertilizer n.肥料
  • release n.释放;让渡;发行vt.释放;让与;准予发表;发射