prep.直至,一直到
Hold the two ends of the thrum. We will start the experiment.
抓住线头的两端, 我们开始做实验.
He could hear the thrum of a banjo.
窗外传来吉他的漫弹声.
My head was going thrum thrum thrum.
我的脑袋嗡嗡作响。