参考例句

1. When he transferred to the Admonitor, he was given the thankless task of mapping huge areas of the Unknown Regions.
被转到“忠告者号”上后，他得到了一个不值得感谢的任务——为广大的未知区域绘制星图。
2. BEING a Middle East peace envoy is a thankless task.
做一个中东和平使者是一项不讨好的任务。
3. BEING a Middle East peace envoy is a thankless task.
做一个中东和平使者是一项不讨好的任务。
4. Such parts are often considered to be thankless, unrewarding.
这种角色通常被认为是吃力不讨好的。
5. That is the thankless position of the father in the family:the provider for a bunch of ingrates.
父亲在家里是个吃力不讨好的角色：要供养一群忘恩负义的家伙。

网络释义

ingrate thankless
忘恩的;
thankless
忘恩的; 不感谢的; 不知感恩的; 不感谢;
ingrate thankless
忘恩的;
do a hard but thankless job
吃力不讨好;
That's a thankless task
那是吃力不讨好的事。;