“Heads up, everybody…I hear the teacher’s a real hard-ass.”
Yeah don’t use it. No one, meaning me, would understand what you are referring to. This reeks of google translation.
about the only word I know there is ‘teacher’
Sounds like you need to work on your English.
How to say metallic gauze? As in the kind that you use in stove overhead range hoods to capture the grease particles.
Thanks in advance for any responses.
There are a few variations. For the filters, I’ve used: 濾油網 (lǜ yóu wǎng) It’s best to specify it’s for an exhaust hood: 排油煙機 (pái yóu yān jī)
Anybody know anything about this one?
Example (I guess this is a teacher speaking to a class):
有無 (have or not have) 小天使 (little angel) 問題 (question)?
Thanks for the fast response! But can you give me some idea of what a “little angel” question is?
Does is mean, maybe, good student question, or teacher’s pet question, or something along those lines?
In any case, thanks!
I’d need a little more context to take a stab at that. Cute, well-behaved kids are often called little angels, but not sure what’s going on here.
It’s a basic criminal law class.
Here are two instances:
By the way, I Googled “『小天』是什麼意思”, and I got a few instances of native Chinese speakers asking that question. 
Looks like some discussion of legal theory as it relates to public insult cases. Seems pretty obscure. Probably not something you need to know?
Update: looks like 小天使 is a pseudonym for a person involved in a public insult case. Maybe it set a legal precedent?
Not specifically, not yet, anyway, and probably not ever, at the rate I’m going.
Today I started looking around at/for Chinese legal (teaching) materials online.
For example, I had a look at this gentleman’s site:
And I briefly looked at this:
法學入門 - 臺大開放式課程 (NTU OpenCourseWare)
Of course it would help me in understanding these things if I were to learn Chinese. 
小天使 is an online pseudonym for someone involved in a public insult case. Here’s a quick summary:
Now, don’t get mad, I’m just asking: Is that a real case?
I’m only asking because it looks like the kind of summary that could be seen in a law school hypothetical. Then again, real cases are often summarized that way, so never mind.
It appears to be a problem or thought experiment given to law students, not sure if it’s based on an actual case. The point is to make them think about whether insulting someone online who is using a pseudonym (real identity not revealed) is grounds to bring a public insult case.
Brilliant find! I should have said that earlier. And thanks for an abundantly good answer to my question!
Google did the heavy lifting. 
Yeah, but it often takes talent to persuade Google to do that lifting.