这两个三角形相重合.The two triangles coincide.这两条线相重合.These two lines coincide with each other.对称中心必须与质量中心重合.A center of symmetry must coincide with the center of mass....
当他推开门时，一口旧式的钟丁零零地响了起来。An old-fashioned bell tinkled as he pushed open the door.房子里摆放着笨重的旧式家具。The interior of the house was furnished with heavy, old-fashioned pieces.我们在很多方面仍是一所旧式学校。We're still a traditional school ...