Herons Ardeidae, sparrows ( Passerinae ) and common magpies ( Corvidae ) are suggested as useful bioindicators of environmental pollution.建议选择野生鹭类 、 麻雀和喜鹊等鸟类作为指示生物监测环境中的重金属污染....
He fearlessly lammed into his attackers, and soon they all fled away.他勇猛无畏地痛打袭击者, 很快他们都逃跑了.He appealed for information from anyone who saw the attackers.他呼吁任何看见袭击者的人提供信息。They issued an ultimatum to the police to rid an a...
A promise is a promise. ( made a promise and keep a promise ) .信守承诺. 阿甘信守了承诺,最后也得到了最好的 回报.It is easier to make a promise than to keep a promise.作出承诺容易,实现承诺不易.Herod had John beheaded to keep a promise.希律为了守所起的誓把约翰斩头....
The welder took off his helmet, disclosing a sweating round face.焊工除下护面罩, 露出一张流着汗水的圆脸.Small doses depress salivary and bronchial secretion and sweating.小剂量可抑制唾液分泌、支气管分泌及出汗....a remedy that produces profuse sweating.使人大量出...