But surprisingly, plants use this latter defence system only half - heartedly.

但令人吃惊的是, 植物对后一种防御系统的利用缺乏十足的热情.

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Also helps to and strengthen the skin's natural defence system, protecting it irritants and environmental stress.

同时,亦能加强肌肤的天然防御系统, 防止肌肤受到刺激物及环境中的有害物侵害.

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