at a touch

at a touch是什么意思、at a touch怎么读
一碰到就

at a touch汉语翻译

一碰到就

at a touch例句

  1. The machine stops and starts at a touch.
    这机器一触即可停止或开动。
  2. A snail shrinks back at a touch.
    蜗牛一碰就缩回去了。