- be pure in mind and body; be honest; have clean hands; keep one's hands clean; lead a clean life
- 兔血清清蛋白,兔血清白蛋白: rabbit serum albumin
- 白白: in vain; to no purpose; for nothing; of no avail 白白送人 hand [present] sth. on a silver platter; 不要让时光白白过去。 don't let time slip by
- 清清: blog; xqq
- 碘标记血清清蛋白,碘化血清白蛋白: iodinated serum albumin
- 清白: pure; clean; unsullied; have clean hands; stainless 历史清白 have a clean personal record; 清白无罪 with clean hands; guiltless; sinless; 清白的名声 a fair name [reputation]; 家世清白 a person of gentle birth; 清白人家 a decent family; 名声清白的税务员 a tax collector of unsullied reputation
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