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