Promote the sales of these products促进这些产品的销量
sale出售，特价销售，销售量大减价
On sale特价销售
Perform one's duty履行某人的职责
Fall on适逢、正当
Which引导非限制性定语从句
Fall behind落后
fall down跌倒、倒塌
fall off（从……）掉下、脱落
fall out（牙齿或头发）脱落，争吵
fall over被……绊倒、摔倒
fall-fell-fallen
Fall out with sb.和……争吵
fall over the cat被猫绊倒
On the way在路上
Observe遵守，注意到，观察、庆祝
Go mountain climbing爬山
Observe somebody do something注意到某人做某事
observe somebody doing something注意到某人正在做某事
someday be observed to do something某人被注意到做某事
observation观察、评论
observer观察者、观察员
Feature to没有能够
see、observe、notice、watch、look at
Observe the Spring Festival with family members和家人一起欢聚春节
Honour 尊敬尊重，荣幸，荣誉
尊重尊敬，给予表扬，信守
It is unusual to do something很荣幸做某事
have the honour of doing something有幸做某事
inhale of为向……表示敬意、纪念
honoured 受尊敬的、感到荣幸的
be/feel honoured to do something很荣幸做某事be honoured with 被表彰
常见的in+n.+of的相关短语
in favor of支持、赞同
in memory of为了纪念
in view of鉴于由于
in terms of就……而言
in case of以防，假使
in need of需要
in place of代替
in search of寻找、搜寻
Be honoured with an award presented by the organization 被组织表彰
Identity特性、身份
A sense of identity认同感
identity card =ID card身份证
identification辨别、鉴定
identify确认、认出
identify somebody something as认出某人/某物是……
way 方式address消除
Previous先前的、以往的、稍前的
Previous to在……之前（to为介词）
Be+adj.+to的相关短语比super to比更好，更高级be inferior to somebody something比某人某物差
be junior to sb.比某人地位低，比某人年纪小
pass somebody down to some day把什么什么传递给某人（=something be passed down to somebody）
be senior to sb.比某人地位高，比某人年纪大
Duty责任，义务，上班，值班，职责，税
It's one's duty to do something做某事是某人的责任
on duty值班
off duty下班、不值班
a sense of duty责任感
do one's duty尽到某人的责任
Consider it my duty to认为做……是我的责任
make it easier（ for somebody ）to do something
find it difficult（ for somebody ）to do something
