Don't be ungrateful, at any time, any things.

⊙、不要忘本，任何时候，任何事情。

youdao

I have never known men of ability to be ungrateful.

我从来没有见过真正有能力而不知道感恩的人。

youdao

I don't think any of us can afford to be ungrateful to the present age.

我认为我们每一个人都不会不对现在这个时代心存感激。

youdao

Sasha, who had hitherto been happy for Andrey, asking me if I could get Andrey American citizenship, now exploded, wondering if his nephew could really be so ungrateful.

NEWYORKER: Roulette Russian

While this sentiment may appear ungrateful, it should be remembered that Afghan soldiers are fighting and dying here - they are bearing the brunt of the conflict.

BBC: Afghans sceptical about fresh troops