Straw, chaff, animal hair, and quartz were part of the mixture that protected and strengthened the clay material, as did ropes attached to wooden pegs at the bottom layer.
为了保护和强化陶泥，混合物中添加了稻草、谷壳、动物毛发和石英，底层还用绳子与木桩相连。
2
It forms societies that are among the most complex in the animal world, which can comprise 8 million ants, with different functions attached to different groups.
它们组成动物界最复杂的群体，有可能容纳800万只蚂蚁，而且不同的群组有不同的职能。
3
Attached to a parachute, the animal screamed in fear as it circled over heads of holidaymakers sunbathing on a beach.