英语听力：自然百科 冰冻星球 前往地球尽头—4
时间：2018-12-26 作者：英语课 分类：自然百科2012年
英语课
Few have witnessed this moment, for the male, his only tender encounter in an otherwise solitary 1 life.
But it doesn't last long. A rival suitor has also caught the female's scent 2.
Courtship has to be put on hold. He must fight for his rights.
He sees off this first challenger without injury to either party, but bloodier 3 battles are to come.
Another battle won, though he has been slightly injured. He hurries back to his mate, but now she seems to have lost her enthusiasm. Female polar bears are high maintenance.
Wherever she goes, he will follow, mating with her when she allows and guarding her at all times. Over the next two weeks, the male sees off many rivals, but the battles take their toll 4 on him.
He is almost spent, but he has ensured that no other bears have mated with his female.
1 solitary
adj.孤独的，独立的，荒凉的；n.隐士
- I am rather fond of a solitary stroll in the country.我颇喜欢在乡间独自徜徉。
- The castle rises in solitary splendour on the fringe of the desert.这座城堡巍然耸立在沙漠的边际，显得十分壮美。