Mercury is covered in craters - hollows made by huge space rocks crashing into it.水星的表面有许多陨石坑,这些坑是由巨大的太空岩石撞击而成的.Its name is Ben Alder , it is a wild , desert mountain full of hills and hollows.它的名字是本·亚尔德, 是一座尽是些山岗和鸡谷的漠无人...
With their fleece sopping wet, they huddled in hollows, too dispirited to graze.在皮毛打湿的情况下, 他们挤在低洼处,靠近黑莓丛,或者躲在背风坡上, 毫无觅食的情绪.Mercury is covered in craters - hollows made by huge space rocks crashing into it.水星的表面有许多陨石坑,这些坑...
This type of surgery could even be used to extract cancerous growths.这种外科手术甚至可以用来切除癌性肿瘤。The device can discriminate between the cancerous and the normal cells.这台仪器可以辨别癌细胞和正常的细胞。Nine out of ten lumps are not cancerous.90%...