Arthur was in very high spirits while driving through the fertile valley country; but when they entered upon the winding road near Cluses, and the great, jagged hills closed in around them, he became serious and silent.

开车穿过肥沃的山谷地带时，亚瑟兴致勃勃。但是当他们走上克卢斯附近的蜿蜒小路，周围是参差不齐的大山时，他变得严肃而沉默。