四川花生蛴螬种类调查及优势种群生物学特性研究
1·A tumblebug came next, heaving sturdily at its ball, and Tom touched the creature, to see it shut its legs against its body and pretend to be dead.
不久，又有一只金龟子飞过来， 不屈不挠地在搬一个粪球； 汤姆碰了一下这小东西，看它把腿缩进身体装死。