already早已，用于完成时的肯定,；
yet,用于完成时的否定和疑问；
just,用于完成时
just now=a moment ago用于过去时,
arrive at (小地方)/in(大地方)=reach=get to ,到达
bring,从外往里拿，take ,从里往外拿，carry无方向,fetch往返拿,
more than ,=over,多于
less than,少于
alone,个体单独，独自；
lonely,孤独，寂寞，也表示荒凉，
most of.. ..的大多数,
a visit to 对 ...的参观,
on a visit to....,参观...
for a visit 参观,
pay a visit to ,拜访
as ...as....和....一样
not as ...as..=not so ...as 不如,
so ...that如此...以致于....如果that后是否定,就可以用too...to转换,如果是肯定就用,形容+enough(for sb )to do sth.
be famous for 因...面著名(原因),
be famous as以...身份或产地而著名
prefer doing sth. to doing sth.=like doing sth better than doing sth更喜欢做某事,
prefer to 更喜欢... prefer to do sth rather than do sth.宁愿做某事而不愿做某事,
return from a visit to 从...访问返回,
be named after 以...的名字命名,
be proud of 以....自豪,
be up to sb.由某人决定,
up to 从事于,忙于,
space station在太空站,
show sth to sb.=show sb sth把某物给某人看,
on business出差,因...公事,
在...的上面 over,在..上面,正上方,中间有段空间,反义为under
on 在...上面,贴着物表,反义beneath,
above在..上方,高出,反义below
in the sky=in the air在天空中,
by air=by plane坐飞机,
in the last three years在过去三年里,用于现在完成时,
none 用于三个以上的全否定，反义为all；
neither两个都不，反义为both,
the lastest news,最新消息，
share sth.with sb.与分享某物
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