负责选举的官员们已经临时安了几个喇叭，让投票者可以同时享受音乐。Election officials have rigged up speakers to provide voters with music.人们点燃烟花，按响汽车喇叭。People set off fireworks and tooted their car horns.骑车人危险地在车流中飞速穿行时，汽车喇叭的嘟嘟声响成一片。Car horns toot as cyc...
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...