当你打字时，确保你的肘部呈90度弯曲。
When you type, make sure your elbows are bent at 90-degree angles.
研究结果表明，年轻人和儿童的大脑在手写时要比在键盘上打字时活跃得多。
The results show that the brain in both young adults and children is much more active when writing by hand than when typing on a keyboard.
你不在时，她擅自用你的打字机。
She took the liberty of using your typewriter while you were away.
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