spare no effort to do
备用通道
spare channel【计】;standby channel【计】
暂无补充释义。
spare channel【计】;standby channel【计】
暂无补充释义。
spare no effort to do
Spare the rod and spoil the child
spare parts
spare lamp
spare capacity
spare parts kit
spare no effort; go all out; do one's best
spare sb's life