Certain foods have been shown to improve relaxation and concentration and enhance your mood.
某些食品有迹象显示可放松神经、提高集中注意力和改善情绪。
It can't be like an Internet game, to improve relaxation and concentration and enhance your mood at the same time.
这不像网络游戏，能够放松，增强注意力，同时还能缓解情绪。
In the process of playing the piano, there should be a harmonious unity between relaxation and concentration, between dropping and supporting, between horizontal movements and vertical movements.
钢琴弹奏过程中，放松与集中，下落与支撑应有机统一，水平运动与垂直运动应协调配合。
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