since是一个用法极活跃的词representative of； Chinese；the understanding;the causes in which similar nouns have different ways of understanding ‘V+N’ structure ;
She doesn\'t play sports.Does she play sports every day?I can\'t find my watch.Can you find your watch?I don\'t want to see a comedy.Do you want to see a comedy?simple future tense(一般将来时)Protect environment is very importantsin15/cos15 sin75/cos75
tan15=2-根号下3 tan75=2+根号下3RAS syndrome stands for Redundant Acronym Syndrome syndrome and refers to the redundant use of one or more of the words that make up an acronym or initialism with the abbreviation itselfreport to the policeso that 是以至于的意思Some people say that what the rest of my lifeS=a*h 其中S表示该平行四边形的面积retaw
apple finger sandwich crisps
She said that her brother wanted to go with her.
He asked Kate how her sister was then.
skipping rope 跳绳 jogging 慢跑 running 跑步 long jump 跳远 high jump 跳高 table tennis 乒乓球 badminton 羽毛球 tennis 网球 football/soccer 足球 basketball 篮球 surfing 冲浪 skiing 滑冰 wind surf 风帆...
soap opera 就是一般的那种八点档电视剧
She is wearing a blue coat and a pair of green pants/trousers.pulled
refer to 中的to是介词
prepare for sth.为.事做准备(for不能漏）
或：making preparations for
Safety engineering studies various accidents during human productions and activities of daily livings(ADLs). It integrated achievements and knowledges of natural sciencespriority