1.the top of the pyramid 金字塔最顶端(比喻)
The leaders are at the top of the pyramid and common employees are at the bottom.
最高领导在上面,一层层下来,最下面的是员工。
2.overdo it 别太过分(贬义)/尽己所能/各尽其职(褒义)
Versatility is another of your strong points, but don't overdo it by having too many irons in the fire.
你还有一个长处是多才多艺,但不要揽事太多而太露锋芒。
3.that was gold 金律
If you remember these three golden rules you won't go far wrong.
记住这三条金律,就不会错到哪儿。
4.dying industry 夕阳产业
Coal is by no means a dying industry.
煤决不是日趋没落的工业。