| 词汇 | substrate |
| 释义 | sub·strateBrE /ˈsʌbstreɪt/ NAmE /ˈsʌbstreɪt/ noun (specialist ) a substance or layer which is under sth or on which sth happens , for example the surface on which a living thing grows and feeds 底物；底层；基底；基层 |
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