假定你是李華，想要參加China Daily發(fā)起的"A letter to Year 3023"的時(shí)光膠囊征稿比賽，向3023年的地球人介紹現(xiàn)代中國(guó)"新四大發(fā)明"（高速鐵路，移動(dòng)支付，共享單車(chē)和在線購(gòu)物），并以其中之一為例，說(shuō)明新四大發(fā)明對(duì)生活的影響。
要求：
（1）詞數(shù)80左右，開(kāi)頭和結(jié)尾已給出，不計(jì)入總詞數(shù)。
（2）可適當(dāng)增加細(xì)節(jié)，以使行文連貫。
    To whom it may concern，__________________
Yours sincerely，
Li Hua

【考點(diǎn)】主題式．

【答案】To whom it may concern，
I come from China，known for contemporary four great new inventions.They are high speed railway，mobile payment，bicycle sharing，and online shopping，which have added great convenience to our daily life.
Without any barrier to the Internet and a host of use of mobile payment，online shopping has gained much popularity，engaging the public to form different consumption habits.I seldom shop at brick-and-mortar shops now.What I often purchase online is clothing and stationery.The easy access to consumer reviews helps me make informed purchases.Also，shopping online helps me save time and money.But because you can't see the real thing，the goods you receive may not be the same as those online，which is really annoying.
Whatever happens，we hope you can improve the shortcomings of the technology and live a healthier and more colorful life.
Yours sincerely，
Li Hua