The plant's stem is marked with thin green longitudinal stripes.这种植物的茎上长有绿色细长条纹。These structures were usually skewed with the diaphragms placed perpendicular to the longitudinal girders.这些结构通常是斜交的,而横隔板则垂直于纵梁布置.The e...
A dentist may decide to extract the tooth to prevent recurrent trouble.牙医可能会决定拔掉那颗牙，以免反复发作。When not removed, plaque causes tooth decay and gum disease.牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。He fought tooth and nail to keep his job.他竭尽全力保住...