总而言之，这是一本通俗而务实的物理入门书。On balance, the book is a friendly, down-to-earth introduction to physics.他是物理尖子.He was the top student in physics.我对物理和化学不是太感喜爱。I wasn't too keen on physics and chemistry....
Lungs retain relatively insoluble particulate material.肺脏内留有不溶解的颗粒物质.These particulate creatures are hardly visible to the naked eyes.这些微小的生物肉眼几乎看不见。A special group was organized to dig up the particulate of the case.成立了...