当学习者认为歌曲愉快，他或她的利益，说英语了，可以很容易受刺激的重要组成部分。
When the learner finds songs enjoyable, his or her interest that plays a key part in speaking English can be easily stimulated.
干性皮肤很容易变的暗哑，长皱纹，并且毛孔很细。很容易衰老，易受刺激。
Dry skin can easily develop a sallow tone, wrinkles, and fine pores, and it is very prone to aging and irritating.
干性皮肤很容易变的暗哑，长皱纹，并且毛孔很细。很容易衰老，易受刺激。
Dry skin can easily develop a sallow tone, wrinkles, and fine pores, and it is very prone to aging and irritating.
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