wet-blanket

基本解释

Let's not invite Dick to the dance--he is such a wet blanket with that sour look on his face and his boring talk.
我们开舞会可别请迪克。他整日愁眉苦脸，说的话还很无聊，是个让人扫兴的家伙。
Rock, you are ungrateful and selfish. All these years you've been lying here with nothing to protect you - a few more drops of rain won't harm you. I am cold and getting wet and I need this blanket.
石头，你是忘恩负义，自私自利，这些年你一直躺在这里没有保护你 - 一个数的雨滴不会伤害你，我越来越冷，湿毯子，我需要这个。
Let’s not invite Dick to the dance--he is such a wet blanket with that sour look on his face and his boring talk.
这个人说：“我们开舞会可别请迪克，他那愁眉苦脸的样子，还老说那些没有人感兴趣的话，太扫兴了。”

That's like an eternity from now, which is pretty much throwing a wet blanket on our love for non-forceable OTA updates.
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If you say that someone is a wet blanket, you are criticizing them because they refuse to join other people in an enjoyable activity or because they want to stop other people from enjoying themselves.