thankless
adj
1 not feeling or expressing gratitude 不感谢的; 不领情的; 忘恩的.
2 (of an action) not likely to win thanks, appreciation or reward for the person performing it (指行为)不可能得到感谢、 感激或报偿的
a thankless role, task 受累不讨好的角色、 工作.
🗣️ 情景例句
We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货,我们就同意开信用证。
He knows best what good is that has endured evil.
忍过痛受过苦,最知幸福是何物。
The use of gloves was not introduced until 1860, when the Marquis of Queensberry drew up the first set of rules.