He carefully surveyed the ridges and knolls once more , and also the ravines and gullies.他又注意地巡视着那些梁和峁, 还有沟和壑....ravines with foaming rivers rushing through them.泛着白沫的河水奔腾而过的沟壑They jumped ravines, they slid down cliffs.他...
Inbry caught me a dragonfly.英布里给我抓了一只蜻蜓.The dragonfly feeds on mosquitoes and flies.蜻蜓捕食蚊蝇.How does a dragonfly twirl and dive in flight?蜻蜓在飞行中是如何旋转和俯冲的?...
The thesis first promotes based Object Oriented Modeling method - Aggregating & Deriving Mothod.本文首先提出了基于面向对象思想的 建模方法 ——聚合派生法.An SPE has built - in filtering, aggregating and correlating, and merging operators that manip...
With a low-pitched rumbling noise, the propeller began to rotate.伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。I was pitched into the water and swam ashore.我被甩到水里后向岸边游去。He kept his voice low-pitched in case someone was listening.他把声音放低以防被人听见。...