「目標」一定要切實可行，否則會起副作用。學唱歌、學跳廣場舞、學下棋等等

「目標」一定要切實可行，否則會起副作用。學唱歌、學跳廣場舞、學下棋等等都可以當做樹立的目標，而且都很可行。

結果 (英文) 1:

"Target" must be realistic, otherwise it will play a side effect. Learn to sing, learned to dance the square dance, learn to play chess, etc. can be set as a target, but also very practical.

結果 (英文) 2:

"Target" must be practical, otherwise there will be side effects. Learning to sing, learning to dance in the square, learning to play chess, etc. can be regarded as a goal, and are very feasible.

結果 (英文) 3:

"Goal" must be practical, or it will have side effects. Learning to sing, learn to dance in the square, learn to play chess and so on can be set as goals, and they are very feasible.