undertook英 [ˌʌndə''tʊk] 美 [ˌʌndɚˈtʊk]
undertook 基本解释
动词承诺; 着手; 担任( undertake的过去式 ); 保证
undertook 网络解释
1. 承担：undertone 低音 | undertook 承担 | underutilize 未充分使用
2. 约定：undertone /低音浅色/ | undertook /约定/ | undertow /从岸边退回去的波浪/退波/
undertook 词典解释
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