弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。
String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm-two entirely different movements.
实验参与者的任务是自由的决定是用左手还是右手食指按键反应，同时他的大脑被进行扫描。
Participants had their brains scanned while they decided to press a button with their right or left index fingers.
弦乐器的演奏者练习的则是在左手的手指上下滑动的同时，用右手前后拉动琴弓——两个截然不同的动作。
String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm — two entirely different movements.
如果上色拉时同时上面包或饼干的话，你可以用左手拿一小块饼干或面包去帮着把色拉推上叉子。
If a cracker or bread is served with the salad, one may use a small piece in the left hand to help the fork take up the salad.
我们今天在教室里进行了一个活动，梁老师说：“你们拿左手画方，用右手画圆，注意要同时画完。”
Today we conducted a classroom activity , Liang said: "You take the left hand side drawing with his right hand draw a circle and pay attention to the same time unfinished."
我们今天在教室里进行了一个活动，梁老师说：“你们拿左手画方，用右手画圆，注意要同时画完。”
Today we conducted a classroom activity , Liang said: "You take the left hand side drawing with his right hand draw a circle and pay attention to the same time unfinished."
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