公共英语复习辅导：PETS4写作短语精选(13)
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Rule of 72
a common formula used to determine the years needed for money to double at compound interest; divide 72 by the interest rate to get the number of years
EXAMPLE:
According to the rule of 72， $10，000 invested at 6 per cent interest doubles to $20，000 in twelve years.
Seasonal variation 季节性波动
predictable changes in sales volume， business activity，orinventory due to the changes of seasons during the year
EXAMPLE:
Seasonal variation within the American toy industry is heavily influenced by Christmas holiday shopping.
sick leave 病假
payment for specific number of days each year during which an employee may be absent due to illness
EXAMPLE:
After they have worked for one year， all the employees of the XYZ automobile company receive 5 days of sick leave each year.
small business 小型企业
any business with a small number of employees ， usually operated by one person， one family，ora small group of managers
EXAMPLE:
Many immigrant families open small businesses in the U.S. such as restaurants.
sole proprietorship 独资
in the U.S. an unincorporated business owned wholly by one individual
EXAMPLE:
My uncle‘s tea shop was a sole proprietorship until my father joined him in a partnership.
本文标题：公共英语复习辅导：PETS4写作短语精选(13) - 全国英语等级考试_PETS作文_公共英语等级考试写作a common formula used to determine the years needed for money to double at compound interest; divide 72 by the interest rate to get the number of years
EXAMPLE:
According to the rule of 72， $10，000 invested at 6 per cent interest doubles to $20，000 in twelve years.
Seasonal variation 季节性波动
predictable changes in sales volume， business activity，orinventory due to the changes of seasons during the year
EXAMPLE:
Seasonal variation within the American toy industry is heavily influenced by Christmas holiday shopping.
sick leave 病假
payment for specific number of days each year during which an employee may be absent due to illness
EXAMPLE:
After they have worked for one year， all the employees of the XYZ automobile company receive 5 days of sick leave each year.
small business 小型企业
any business with a small number of employees ， usually operated by one person， one family，ora small group of managers
EXAMPLE:
Many immigrant families open small businesses in the U.S. such as restaurants.
sole proprietorship 独资
in the U.S. an unincorporated business owned wholly by one individual
EXAMPLE:
My uncle‘s tea shop was a sole proprietorship until my father joined him in a partnership.
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