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如何有效美白牙齒
由於許多不良習慣和許多其他原因，很多人都有一個大黃牙。黃牙對美麗非常有效，這使我們對人際交往失去信心。很多人會轉向牙科整形手術，並且知道牙齒美在人與人之間是不同的。 外源性染色是由於牙齒表面存在多種細...
whose products have been on the market since 2009.
According to a new report by market intelligence firm International Data Corporation (IDC), Xiaomi s...
fishes fun unknown wisdom talk
The intelligent Zhang Zi and the clever Hui Zi were strolling on the bridge over the Haoshui River p...
detect genetic influences wisdom
The power of genome-wide association studies (GWAS) to detect genetic influences on human disease ca...
insects diversity amazement
bservations of insects and their feeding marks on leaves in modern forests confirm indications from ...
partial landslides quake shook
Further damage may not be known until dawn. The tsunami warning in Chile will last at least until 08...
夜莺
昔々、中国の王さまのもとに、遠い国から一冊の本が送られてきました。 そこには、「中国の王さまの御殿は、世界一すばらしい。でも、本当に一番すばらしいのは、そのお庭のナイチンゲールの声。」と、書かれてあ...