不时;断断续续地;间歇地;启闭;

The boat , which was swinging in an eddy, came on and off and pitched with violence.
飘荡在旋涡里的渡船, 一上一下猛烈地颠簸起来.
来源:词典精选例句夏天是休养整顿、并处理一年中积压事务的时候。
来源:《牛津高阶英汉双解词典》Don't confuse me with technicalities —— all I need to know is how to turn the machine on and off.
细节性技术我搞不懂,别讲了,我要知道的只是机器怎么开关.
来源:《简明英汉词典》This low-impact exercise involves stepping on and off a platform following routines to music.
这一低强度锻炼的内容包括在伴随音乐做完固定动作之后重复踏上踏下平台。
来源:《柯林斯高阶英汉双解学习词典》Sparks were emitted from small black boxes and red lamps flashed on and off angrily.
黑色的小盒子里发出火花,红灯刺目地忽亮忽灭.
来源:《用法词典》
纳米英语 · 双语娱乐资讯

纳米英语 · 双语娱乐资讯

纳米英语 · 双语娱乐资讯
纳米英语 · 双语娱乐资讯

纳米英语 · 双语娱乐资讯

纳米英语 · 英语词汇