Thank you for your inquiry, but we cannot make you an offer right now because we are presently unable to obtain appropriate materials.
谢谢贵方询价,但我们不能马上发盘,因为目前我们得不到合适的原料。
It can take as long as eight days to rig up rope ladders and to establish supply bases before a descent can be made into a very deep cave.
有时需要花费整整8天时间来搭起绳梯,建立供应基地,然后才能到一个很深的洞穴里。