the crawl自由泳theart.那；这；这些；那些adv.（用于比较级前）更加；用于最高级前；(用于形容词、副词比较级前)越 ... 越 ...The waveguide is semi infinite.波导是半无限长的.The children are playing about.孩子们正玩耍。The nation's coffers are empty.thermodynamic stability condition热动力稳定性条件The second law of actinochemistry光化学第二定律The traffic was crawling along.来往车辆缓缓而行。the US-led force occupying Iraq由美国领导的占领军The Project Management Life Cycle方案生命周期the development of western region西部大开发The glaucoma intraocular pressure眼压