The distant rumbling of the guns mingles with our marching song.枪的深邃长声与我们行进歌混合.The crane made rumbling sound.吊车发出隆隆的响声.With a low-pitched rumbling noise, the propeller began to rotate.伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。Lysenko gave a ...
We'll put together a proposal, including detailed costings, free of charge.我们将免费拟一份提案，其中包括详细的成本估算。The performers have all offered their services free of charge.演员们都愿意免费出演。The leaflet is available free of charge from...
蓝色和绿色的眼影一直被认为是俗气的。Blue and green eyeshadow has long been considered kitsch.加了几滴绿色的食物色素。A few drops of green food coloring were added.珊瑚有黄色的、蓝色的或绿色的。Coral can be yellow, blue, or green....