One that serves or appears at irregular intervals, especially a temporary worker.

The sewing machine won't function well if you don't oil it regularly.

如果你不定时上油那台缝纫机就不好用.

It happened to be a chance coach that I had taken up.

我所坐的这辆车恰巧是个不定时的马车.

Match and combine them into sentences using the attributive clause.

用定语从句把他们组合在一起.

If you work hard , you are sure to succeed.

as作从属连词可引导多种状语从句.

In an adjective complement clause construction the clause occurs after an adjective.

在形容词补语从句中,从句跟在形容词后面.

He said ( that ) the APEC meeting would take place next week.

当从句动作发生在主句动作之后,从句要用过去将来时.

There is much water in the thermos.

但当不可数名词前有表示数量的复数名词时,谓语动词用复数形式.

These products have been steam distilled out.

(被动谓语组成部分)这些产物已由蒸汽蒸馏出.

Maintaining a healthy self-esteem is ( be ) a challenge that continues throughout life.

解析:一般现在时,动名词做主语,谓语动词用单数.

After supper, we often listen to the radio or watch TV.

晚饭后, 我们经常听广播或看电视.(连接两个谓语)

When I passed by his office , I found John reading something carefully.

分词作宾语补足语和主语补足语其实是同一成分用于两种不同的句式中.

Use is made of solar energy in heating houses.

双重定语引起的分隔.

The public buildings are equipped with air conditioning plants.

(动名词作定语)这些公共建筑物都设有空气调节装置.

Among all the metals iron is the most widely used engineering metal.

(定语)在所有金属中间,铁是最广泛使用的工程金属材料.

On heated, the two substances form a new compound.

(介词宾语)这两种物质一遇热就生成新的化合物.

My sister was heard singing that song in English outside.

(宾语补足语)我听到妹妹在外面用英文唱那首歌.

I know the young couple from whose house the music is coming.

但是当介词放在从句末尾时,作为介词宾语的关系代词可以用that并且可以省略.

Some verbs do not take an object and are a preposition.

有些动词后面不跟宾语,而是与介词搭配.

In the sentence " Frank kicked the ball " , the word " ball " is the object of the verb " kicked ".

在frankkickedthe ball 一句中, ball 是动词kicked的宾语.

Application Practice of High Penetration Emulsified Bitumen Tack Coat in Construction of High-grade Expressway

高渗透力乳化沥青透层在高等级公路中的应用