In the pioneering days, however, this was not the case at all.

然而，在登山运动的初期，全然不是这种情况。

and it spread to Britain where wild rabbits are regarded as a pest but where domesticated rabbits,equally susceptible to the disease, are the basis of a profitable fur industry.

这种疾病又蔓延到了英国。在英国，野兔被当作有害的动物，可是家兔是赚钱的毛皮工业的基础，然而家兔同样易感染这种疾病。

the first group began to show some personality disorders while the others seemed more or less unaffected.

结果，第一组人开始出现性格失常，而第二组人似乎没受什么影响。

he realizes its volume, as the space that the shape displaces in the air.

他能意识到物体的体积，那就是它的形状在空气中所占的空间。

and makes them resolve that in future they will not talk to their parents about the places or people they visit.

决心以后不再向父母讲述去过的地方和见过的人。

A young English writer made the pertinent observation a year or two back

一两年前，一位年轻的英国作家发表了中肯的看法。