Just Like, Naturally
A stream containing stones is like… the most natural thing ever. It's just as expected.
Note that you'll encounter this being written in kana as well, but the meaning is the same.
Unfortunately, the reading for this is a total exception that you'll just have to memorize, so here's a mnemonic to help you:
Just as expected, I saw Suga (さすが) at the bar again last night… Mr. Suga spends a little too much time at the bar, and we're starting to get worried for him. 流石に Mr. Suga…
Wow, that's amazing! As might be expected of you.
Even I can't do this.
It's just like Nic Cage to do that!
I've had seven whole meetings today, so it's no wonder I'm tired.