开产时的蛋鸡体重影响蛋黄大小，进而影响蛋重。
Body weight at point of lay influences yolk size, which, in turn, influences egg weight.
实际上，他和他的团队花费大量时间研究被他成为“发现的根源”的课题。 这个问题主要围绕疾病和病毒之间其他因素的影响产开。
In fact, he and his colleagues spend much of their time engaged in what he calls “de-discovery, ” exposing false links made between viruses and diseases.
西印度群岛的一种树，有开芳香白花的总状花序，产一种经久耐用木材和含树脂的汁液。
West Indian tree having racemes of fragrant white flowers and yielding a durable timber and resinous juice.
美洲产的开黄花的千里光。
美洲产的开黄花的千里光。
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