This grim trend is expected to accelerate.

这一严峻的趋势预计将加速。

Sounds kind of grim, doesn't it?

听起来有点严肃，对吧？

The house was lonely and rather grim.

这所房屋既偏僻又相当阴森。

A grim smile twisted his lopsided mouth.

一丝阴森的笑容使他歪斜的嘴变得扭曲了。

It's grim and it's not getting better.

情况很严峻，而且不会好转。

And I'll make sure you don't look so fucking grim all the time.

而且保证让你一改这副冷冰冰的德性。

And their mood is just grim and pessimistic.

他们的态度严肃又悲观。

Each day, the chance for peace became more grim.

每一天，和平的机会都变得更加渺茫。

There's the image of the hoodie connected to the grim reaper.

兜帽上衣的形象和死神连结在一起。

Same with grim. I may be grim but that's also subconsciously a sign of my seriousness.

同样的例子还有冷酷，我的冷酷，可能在潜意识里正反映出我的严肃认真。