Efficiency of the furnace

efficiency [ɪ'fɪʃənsi]

n. 效率，效能;实力，能力;[物]性能;功效;

ef出+fic做+iency表名词 →做出事情→ 有效率

of [əv]

prep. 关于;属于…的;由…制成; aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];

the [ðə]

art. 指已提到的人（物）;指说话人与听者已知的人（物）;用于独一无二的事物前;与形容词最高级和序数词连用;

furnace ['fɝnɪs]

n. 熔炉，火炉;极热的地方;严峻的考验或磨难;

furn+ace(表示地点的名词后缀)→火炉；熔炉

Because the United States is the most important trade partner.

因为美国是我们最重要的贸易伙伴。

I've got a terrible pain in my stomach.

我的胃很痛。

OK, everyone. Less noise, please! Gather round and listen carefully. First we are going to search the beach and the rock pools. Let me remind you what we are looking for: seaweeds, fish, plants, all living things. When you find anything, make a note where

00在这里集合，游泳之后再吃午餐。别着急！我们有足够的时间。