This is the 7954th most frequent Chinese word.
高压线
"High-voltage power line."
Here, 高压线 refers to an electrical high-voltage line, emphasizing its context within electrical systems and its inherent danger.
这是一条高压线,触碰它非常危险。
This is a high-voltage line; touching it is very dangerous.
In this context, 高压线 metaphorically represents strict boundaries or rules implemented by someone.
在工作中,他设定了明确的高压线,任何人都不能跨越。
At work, he established clear boundaries; no one can cross them.
Here, 高压线 is used figuratively to describe sensitive or controversial topics within a social framework.