Recently it has been confirmed that boron is a super trace element for human.
近年来的研究表明，硼为人体必需的微量元素。
One guest said: "No one had a trace of attitude.".. Everyone was super friendly.
一个客人说：“没有人摆架子…每个人都超级友好。”
One guest said: "No one had a trace of attitude... Everyone was super friendly."
一个客人说：“没有人摆架子…每个人都超级友好。”
One guest said: "No one had a trace of attitude... Everyone was super friendly."
一个客人说：“没有人摆架子…每个人都超级友好。”
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