adj.任性的，有意的，故意的

She was a willful child who always got her own way.
她是个任性的孩子，总是能得偿所愿。
His willfulness led him to ignore all advice and proceed with the plan.
他的固执使他不顾所有建议，执意执行计划。
The willful decision to quit the job without a backup plan surprised everyone.
他毅然决定在没有备选方案的情况下辞职，这让所有人都感到惊讶。
Despite their objections, she pursued her willful ambition to become a musician.
尽管他们反对，她还是坚持追求成为音乐家的梦想。
His willfulness caused friction in the team, as he refused to listen to others' opinions.
他的固执在团队中引发了冲突，因为他不愿听取别人的意见。
The willful teenager defied her parents by staying out late every night.
这个任性的青少年每晚熬夜，公然反抗父母。
The willful refusal to wear a seatbelt landed him a hefty fine.
他执意不系安全带，结果被罚款数额不小。
Her willfulness in pursuing an unconventional career path earned her respect.
她在追求非传统职业道路上的坚定赢得了人们的尊重。
The willful dog dug under the fence, escaping from the backyard.
这只任性的狗挖洞钻出了篱笆，从后院逃了出去。
His willful determination helped him overcome numerous obstacles on his journey to success.
他坚定的决心帮助他在通往成功的道路上克服了许多困难。