class-break setting-up exercise的意思|示意

美 / / 英 / /

课间操

class-break setting-up exercise的网络常见释义

课间操课间操 setting-up exercises during the break; class-break setting-up exercise 农药喷雾机田间操作规程及喷洒质量评定 evaluating regulations for the operation and spraying quality of sprayers in the...