动词 extract:

1. remove, usually with some force or effort; also used in an abstract sense

2. get despite difficulties or obstacles

3. deduce (a principle) or construe (a meaning)

4. extract by the process of distillation

5. separate (a metal) from an ore

6. obtain from a substance, as by mechanical action

7. take out of a literary work in order to cite or copy

8. calculate the root of a number

extractvt.摘录；提取；拔出；榨出；选取[计算机] 提取.n.摘录；精华；榨出物extractabilityn.可萃性Extracted ions选择离子extractibilityn.可萃取性(提取性)extractor fork带卷推出机extractum rhei[医] 大黄浸膏Extractable Zn可提取态锌extracted beam引出束extractor unit抛料机extract liquor萃取液extractor claw退壳器爪

1. The oil is extracted from grape seeds.
   这种油是从葡萄籽中萃取的。
2. Glucasmine is an amino sugar extracted from the chitin of shellfish that is used by the body to support healthy joint structures.
   葡萄糖氨是一种从贝类壳质中萃取的氨基糖，用于维持身体骨骼结构的健康。