But the disadvantage is lack of training and instruction by coaches and professional equipment.

不过，缺点是缺乏教练的训练、指导与专业的设备。

youdao

Where did you see the instruction book of this equipment?

你在哪儿看见了这台设备的说明书？

youdao

Where did you see the instruction purchottom of this equipment?

你在哪儿看见了这台设立建设的说明书？

youdao