TIDAL PERTURBATION OF GEOPOTENTIAL COEFFICIENTS OF SECOND ORDER BASED ON THE PREM RHEOLOGICAL PARAMETERS.基于PREM的地球引力势二阶系数的潮汐摄动.Unwillingly she met his eyes, defiance and perturbation on her face.她极不情愿地看着他的眼睛, 满脸反抗和烦乱的神色....
"Don't let that get you down," he said ruffling Ben's dark curls.“不要为那个感到沮丧，”他一边说，一边抚弄着本乌黑的卷发。He was long-limbed and dark-eyed, with a mop of tight, dark curls.他四肢修长、眼睛乌黑发亮，留着一头蓬乱浓密的黑色卷发。Erica was solemn, pulli...
每个马赛人在出生的那天都会得到一只母牛 、 羊羔和山羊.Every Masai gets a cow a lamb, and a goat the day he's born.马赛人要时刻准备着为牧群而牺牲.A Masai has to be ready to risk his life for his herd....