un·a·vail·ing
adjective/ˌʌnəˈveɪlɪŋ/
/ˌʌnəˈveɪlɪŋ/
(formal)- without success
枉费心机；徒劳无益；白费力气 - Their efforts were unavailing.
他们的努力都付诸东流。
- Their efforts were unavailing.
| 单词 | unavailing |
| 释义 | |
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