He pulled on a battered old crash helmet with a scratched visor.他戴上了一顶破旧的防护头盔，上面的面罩已有划痕。I put down the sun visor to shade my eyes from the light.我拉下遮阳板来遮挡耀眼的阳光。I had to stop at the traffic lights and put down the sun vis...
Herbie Hancock was encouraged by his family to learn music at a young age.赫尔比·汉考克年幼时家人就鼓励他学音乐。Augustine Hancock served as an elementary-school custodian for 20 years.奥古斯丁·汉考克当小学看管人20年了。They want my John Hancock on the co...
The research progress in the mimicking of carbonic an hydrase, hydrolase and redox enzyme is reviewed.综述了环糊精金属配合物用作模拟碳酸酐酶 、 水解酶、氧化还原酶的研究进展.Under optimization conditions, the vires of bile salt hydrolase was enhanced to 7...