Substances conveying plant resistance to insects include inorganics, primary and intermediary metabolites and secondary substances.给予植物抗虫性的物质包括无机物, 初始、中间代谢物和次生物质.Now, a living language has been found that can play the sa...
他在逆境中表现出了勇气。He showed courage in adversity.面对逆境的勇气courage in the face of adversity面对逆境她从未想过放弃.When faced with adversity she was never tempted to give up....