If improving your running speed is something you'd like to work on, you could also ask your gym teacher for advice.
如果你想提高跑步速度，你也可以向你的体育老师寻求建议。
If you're stronger in some areas than others, be sure to work on improving your weak points while leveraging the areas where your power is strong.
如果你在某些方面很强，一定要提高自己的弱项，以平衡自己的强项。
Jane, your English is improving every day. I'm really pleased with your work.
简，你的英语每天都在提高。我对你的学习感到很满意。
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