Sing louder
声───sound;唱───sing
The earthquake began with a deep [ low ] rumbling sound.───地震开始时发出低沉的 隆隆 声.
If you don't like the way we're doing the job, sound off!───要是你不喜欢我们的工作方式就说出来.
She scuttled off when she heard the sound of his voice.───听到他的说话声,她赶紧跑开了。
The sound of revelry filled the house yesterday.───昨天这个屋子里充满了欢闹声.
The new airplane flies at twice the speed of sound.───这架新式飞机以两倍于音速的速度飞行.
A long vowel is a long sound as in the word'shoe ".───长元音即如“shoe ” 一词中的长音.