The adult cicada has two sets of wings which can shake together to produce a high, continuous sound when the weather is hot.
成年蝉有两对翅膀，当天气炎热时，这两双翅膀一起震动，发出一种巨大而连续的响声。
2
After Massa will have given the new single seater its shake down at Fiorano on Monday the team will evaluate the weather, both in Italy as in Portugal.