Hold the brush so.

这样握笔.

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Hold bottle up - right with thumb under base and nozzle between first and second fingers.

右手的大拇子,食指和中指握住瓶子(就是握笔的姿势).

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The pencil should be hold tightly the holding position should be higher than drawing tools.

手握笔的位置要比用仪器绘图时高些,以利运笔和观察目标.

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