| 单词 | implacable |
| 例句 | implacable adjective •the computer hacker has become the new implacable foe:unappeasable, unforgiving, unsparing | inexorable, intransigent, inflexible, unyielding, unbending, uncompromising, unrelenting, relentless, ruthless, remorseless, merciless, heartless, pitiless, cruel, hard, harsh, stern, tough, iron-fisted. |
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