keep on carving;chisel incessantly;unflaggingly work with perseverance;keep on chipping -- work with perseverance ;

Her beauty drew many zealous suitors who pursued her relentlessly.
她的丽姿引来了无数狂热的求婚者锲而不舍地追求她.
来源:网络文摘精选He made thousands and thousands of notes. He sorted and classified them.
整整14年,他埋头苦干,锲而不舍,做了千万条注释, 又把这些注释分门别类整理有序.
来源:互联网摘选She is very tenacious and will work hard and long to achieve objectives.
她是个锲而不舍的人,为了达到目标愿意长期苦干。
来源:词典精选例句He pursued her relentlessly, refusing to take'no'for an answer.
他锲而不舍地追求她, 拒不接受 “ 不 ” 的回答.
来源:《简明英汉词典》
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