講解：

offer sth / sb (up) (to sb)
奉獻(xiàn),祭獻(xiàn)(給上帝):
We offered up our prayers for the men's safe return.
我們祈求上蒼保佑他們平安歸來。

be complicated
復(fù)雜的；難懂的
It's all very complicated—but I'll try and explain.
盡管這一切都很難理解,但我會(huì)盡力解釋。

once+句子
一…就；一旦；當(dāng)…時(shí)候:
We didn't know how we would cope once the money had gone.
一旦錢花光了,我們就不知道該怎么辦了。

a rich moist cake
松軟味濃的蛋糕
Add some water to keep the cake moist.
加點(diǎn)水來讓蛋糕松軟。

prosperous countries
繁榮的國(guó)家
China has became prosperous over the past 30 years.
中國(guó)在過去的三十年里變得十分繁榮。

import sth (from...) / sth (into...)
進(jìn)口；輸入；引進(jìn):
The country has to import most of its raw materials.
這個(gè)國(guó)家大多數(shù)原料均依賴進(jìn)口。

pour sth into/over/介詞
使(液體)連續(xù)流出；傾倒；倒出:
Pour the sauce over the pasta.
把醬汁澆在麪食上。