is 
(ĭz)
(ĭz)v.
Third person singular present indicative of be.
[Middle English, from Old English; see es- in the Appendix of Indo-European roots.]
| 单词 | is |
| 释义 | is (ĭz)v. Third person singular present indicative of be. [Middle English, from Old English; see es- in the Appendix of Indo-European roots.] |
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