双方交火时动用了大炮、迫击炮和轻武器。The two sides exchanged fire with artillery, mortars and small arms.这个世界上的轻武器超过5亿5千万.There are over 550 million firearms in world - wide circulation.轻武器包括狙击步枪, 喷火器, 手机等.Small weapons include sniper rif...
She was enveloped in a huge white towel.她裹在一条白色大毛巾里。Smoke from the burning house enveloped the whole street.燃烧着的房子冒出的浓烟笼罩了整条街.The land is enveloped in a curtain of darkness.夜幕笼罩着大地....
Periodically , the lamellae become enlarged, forming flattened, membrane - enclosed vesicles called thylakoids.片层周期性地扩展, 形成扁平的有膜为界的囊,称为类囊体.Mortality is the number or volume of trees periodically rendered unusable through...
Her grip slackened on Arnold's arm.她紧握着阿诺德的手松开了。At about five o'clock, business slackened off.大约5点钟的时候，生意闲了下来。According to the survey, overall world trade has also slackened.根据这项调查，世界贸易整体上也有所放慢。Her grip slacken...
边材含有木质导管, 但不如中心木质那样坚硬.Sapwood contains xylem vessels, but not as strong as heartwood.毛白杨边材材色株间存在显著差异.Thecolor of sapwood of Chinese white poplar among trees has significant difference.边材色稍浅,仅导管槽带有红色.Sapwood pale colored ...