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Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.

大家都知道，在墻壁或山腰附近發出的喊聲，就會聽到回聲。

Primarily, the banker-customer relationship is that of debtor and creditor----

銀行與儲戶的關系主要是債務人和債權人的關系。

With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored.

隨著書寫的發明，又邁進了一大步，因為這樣一來，知識不僅能交流，而且能儲存了。

The mammoth has now been restored in the Palaeontological Museum in Leningrad. Other animals were trapped in tar pits, like the elephants, sabre-toothed cats, and numerous other creatures that are found at Rancho la Brea,which is now just a suburb of Los

這頭長毛象已被修復，現存于圣彼得堡古生物學博物館。有的動物掉進天然瀝清坑里被保存下來，如在蘭橋。拉。布里 -- 現在是洛杉磯的郊區發現的大象、劍齒虎和許多其他動物。

Such administrative overheads in a business are analogous to the cost of government in a nation.

一家企業的這種行政管理開支類似于一個國家的政府管理所用的開支。

Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.

如果有相配的電壓，可以煮少量水的便攜式熱水裝置是有用的。