你辛苦干一整天，一定累了。（对现在情况的推测判断）
那个可怜虫为了个计划辛辛苦苦干了一个月，一分钱也没拿到。
The poor guy worked hard for one month on a project without getting a penny.
瑞典人辛辛苦苦干了3年才建成这件水上艺术品，它比以往任何船只雕刻得都更加精美，装饰得都更加华丽。
They had laboured for three years to produce this floating work of art; she was more richly carved and ornamented than any previous ship.
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