There's no need to spend time or energy teaching them about physical activity.
没有必要花费时间或精力教他们进行身体活动。
Increased energy, activity, and restlessness.
精力旺盛，过度活跃，躁动。
Sunspot activity is correlated with the total amount of energy we receive from the sun.
太阳黑子的活动性与我们从太阳那获得的总能量密切相关。
In fact, increased physical activity is often prescribed as a cure for sinking energy.
其实，增加体力活动常常是为治愈人们体力衰退所开的一个药方。
She suggests that I should pour all my heart and energy into teaching activity.
她建议我应该身全心的将所有精力都投入到教学工作中去。
The sun is the source of energy for everything on planet earth, all life, all weather, and all activity that we know.
太阳是地球上万物的能量之 源，包括我们知道的所有生命、所有天气和所有的活动。
MgO powders, with small particle size, loose structure and high strain energy, have high activity.
晶粒细小，结构疏松，应变能大的氧化镁粉末具有较高的活性。
MgO powders, with small particle size, loose structure and high strain energy, have high activity.
晶粒细小，结构疏松，应变能大的氧化镁粉末具有较高的活性。
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