Overhead, the chopper roared and the big blades churned the air.头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。The air reeked of kerosene and huge aircraft rumbled overhead.空气中散发着煤油味，巨型飞机在头顶隆隆地响着。Overhead cranes were lifting giant sheets of s...
在它的介体中是属于中间的或半持久的.That is transitory or semipersistent in its vector.植物有充分的变异性可用于培育对一些蚜虫介体的抗性.There is adequate variability in plants to breed for resistance to certain aphid vectors.吸收养分的介体.Helps in the absorption of nu...
They had asked Hong Kong for permission to put into port there.他们请求香港允许他们在那里入港停留。The 1950s were the decade of Hong Kong's industrial take-off.20世纪50年代是香港工业开始快速发展的10年。The Regent hotel has a superlative view of Hong K...