如果你挠他的下巴，他的耳朵就会摆动。His ears wiggled if you scratched his chin.挡风玻璃上的雨刮“啪嗒啪嗒”地来回摆动。The windscreen wipers thudded back and forth.别靠近它摆动的尾巴。Don't go near that lashing tail....
你一定注意到他有时候显得特别疲惫。You must have noticed how tired he sometimes looks.他正挥手以引起他们的注意。He was waving his arms to draw their attention.罗斯听到了熟悉的声音，但没注意听说的是什么。Rose heard the familiar voice, but tuned out the words....
脆性往往是合金化的一种结果.Brittleness is often a result of alloying.表面涂敷技术分为两个主要类型: 脆性涂层和光弹性涂层.Surface - coating techniques may be classified into two major types: brittle coatings and photoelastic coatings.研究裂纹技术应用于分离脆性块体的分离理论和分离方法...