由于收视率下降
Due to declining viewership
以上为机器翻译结果，长、整句建议使用 人工翻译 。
但是最近几年，电视动画片的收视率不断下降。这主要是由于大部分中国动画片只针对儿童这一事实。
But in recent years, TV cartoons have been declining in viewership. This is largely due to the fact most Chinese cartoons are targeted only at children.
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