1.carbon footprint 碳足跡
例句：Usually a carbon footprint is calculated for the time period of a year.
通常情況下，碳足跡是以一年為一個時間段進行計算的y&U[)|T%PB#zyd;。

2.take public transport 乘坐公共交通
例句：It sounds simple, but leaving the car behind and taking public transport could save you more than you think.
或許聽起來沒什么，把“愛車”拋下，選擇公共交通也會帶給你意想不到的好處Gsf]819~y=-[7TuE。

3.health system 衛生系統
例句：He said the system could work within the public health system with the correct technology and systems.
他說，利用合適的技術和系統，這個體系可以在公共衛生系統內部運行6vu25fRF,7-c5DT。

4.for recreation 娛樂
例句：But with nearly all their energy going to their jobs and their daughter, there's been no time for recreation.
但是，他們幾乎把所有的精力都放在工作和照顧女兒上，沒有任何娛樂時間SKESSl8Of;U(sf。