Generally, there is a gap between mental and physical age, behind or advanced.
通常来说，人的心理年龄和实际年龄间都有一个差距，或早于或晚于。
Usually, age is determined by physical characteristics, such as teeth or bones.
通常说来，年龄是通过生理特征确定的，譬如牙齿或骨骼。
In the research of pedology and physical training, bone-age has an important role.
在儿科学和体育科学研究中，骨龄有着重要的应用。
At his age physical exertion was dangerous.
以他的年龄过度消耗体力是危险的。
Age has no reality except in the physical world.
除了在物理时空中，年龄并没有现实意义。
The major correlative factors were age, physical health, family relations and social activity.
影响老年人心理健康主要因素有年龄、躯体健康、家庭关系、社交活动。
The appropriate amount depends on the dog's age, temperature, environment and physical activity.
合适的用量取决于爱犬的年龄、温度、环境和运动量。
The appropriate amount depends on the dog's age, temperature, environment and physical activity.
合适的用量取决于爱犬的年龄、温度、环境和运动量。
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