tenaciously
adv. 坚持地
例句
In spite of his illness, he clung tenaciously to his job.
尽管有病，他仍顽强地坚持工作。
《柯林斯英汉双解大词典》
Though seriously ill, he still clings tenaciously to life.
他虽然病情严重，但仍顽强地活着。
《牛津词典》
They cling to electrons quite tenaciously.
它们和电子紧紧地靠在一起。
