Language Point 27
    ...(they) twitch a little bit, and look at their feet. (Para. 10)
    twitch: v. move with a quick sharp pull of a muscle
    The child's mouth twitched as if she were about to cry.
    小孩的嘴抽動(dòng)著，好像要哭似的。
    When I stood up to her, her right cheek would begin to twitch.
    當(dāng)我站起來朝她走去時(shí)，她的右臉頰就開始抽動(dòng)。
    n. slight, unconscious movement of a muscle or a quick, sharp movement of some part of the body
    He developed a nervous twitch and began to open and shut his eyes continuously.
    他不安地抽動(dòng)著，并開始不停地眨眼睛。
    a little bit: to a small range or degree
    He looks a little bit like his cousin.
    他看上去有點(diǎn)像他的堂兄。
    Is that a little bit tough?
    這是不是有點(diǎn)兒難？