c開頭的單詞動詞

What would you say was the root cause of the problem?

你認為問題的根源是什麼？

The research was carried out on a modest scale.

這個研究項目開展的規模不算太大。

The experiments were carried out under simulated examination conditions.

試驗是在模擬的情況下進行的.。

It is impossible to calculate what influence he had on her life.

現在無法估計他對她的生活產生過多大影響。

Fees are calculated on a sliding scale according to income.

按浮動費率制根據收入高低計算收費。