Backcountry travel may involve travel over both trails and off - trail areas.野外行进包括在小径上和小径以外通过....a large area of woodland with hiking and walking trails.间有远足与散步路线的一大片林地The mountains resemble anthills then, with crowds s...
Was she going to act and keep house?难道她要一边演出一边持家 吗 ?His mother helped to keep house for him.他妈妈帮助他管家.Since their mother died my sister often helps them to keep house.由于他们的妈妈去世了,我姐姐经常帮助他们料理家务....
AB线是三角形abc的底边.Line AB is the base of the triangle ABC.这个三角形,底边的长度是20厘米.The base line of this triangle is 20 centimeters long.这三角形的底边与这四边形的一边相重合.The base of the triangle coincides with one side of the square....