1·The toads were imported from South America to eradicate scarab beetles that were feasting on sugar cane crops.
从南美进口的蟾蜍消灭金龟子被灯红酒绿甘蔗等作物。
2·It is a scarab, a type which comprises 10 per cent of all beetles.
这是一种包括10%各种甲壳虫在内的圣甲虫。
3·There are about 30,000 scarab species comprising about 10 percent of all known beetles.
全世界大约有30000种金龟子，约占已知鞘翅目甲虫种类的十分之一。