你是怎么保持你的牙齿像贝壳一样洁白的？
刷牙，使用牙线，以及每年2次的牙齿检查是口腔卫生保健标准，但是保护你珍珠样洁白的牙齿的好处远比我们知道的还要多。
Brushing, flossing, and twice-yearly dental check-ups are standard for oral health care, but there are more health benefits to taking care of your pearly whites than most of us know.
用闪亮洁白的包装纸与漂亮的包装绳包装好的礼品一直是你最喜欢的礼物吗？
As a bright paper package tied up with string always been one of your favorite things?
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