secretion substance
英
美
- 分泌物
双语例句
- Saliva is secretion of the salivary glands.
唾液是唾液腺的分泌物。 - When the bubbles are coarse it signifies that the secretion originates in the pharynx or nasal cavities.
气泡大时表示分泌物来自咽腔或鼻腔。
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