under cover
短语词组
- regeneration under crown cover 林冠下更新
- tunnel under shallow cover 浅埋隧道
- under separate cover 另封;另邮;另函邮寄
- under plain cover 以普通信封寄发;用没有注明商号;翻译;没有注明寄发人姓名
- under insurance cover 根据保险;根据保险涵盖
- under the cover 遮盖着
- under superficial cover 冠冕堂皇
- under r cover to 附在信中
- send under plain cover 用不注明发信人姓名的封皮寄发
- undercover agent 卧底；警方密探 返回 under cover