helping to keep London’s streets clean.Londoners are being asked to throw their cigarette butts (烟头...Soccer question helps to keep London cleanPORTUGAL’S Cristiano Ronaldo and Argentina’s Lionel Messi ……

is collecting trash in one of the village’s lanes, helping to keep it clean. The kids turned... around 13 or 14. They show us that kids can make a difference and keep our world beautiful.  ……

change (零钱) into the box is a simple way of helping others.● Next time, when you clean your house, try... people in need around the world.Many charity organizations run charity shops in Western ……

. It has clean public transportation (公共交通) and environmentally-friendly buildings. Around the world..., the water goes back to the air to make the city cool and clean. Singapore is home to the first zero-energy ……

programmes, and helping to clean up the environment.To start volunteering, I signed up to help...没有keep track of：知道，清楚pretty adv. 很，非常HELPHELPHELPdonate v. 捐赠wrap up 包起来rarely adv. 很少，几乎没有keep track ……

法国游乐园“聘请”乌鸦当清洁工。Cleaners (清洁工) help to keep cities clean. This month, a park in France welcomed six... small pieces of trash (垃圾). The crows move the trash into a small box. After helping to clean the park ……

This mouse (鼠标) is amazing! 它的后面装了一个小吸尘器。It can keep your desk clean. ……

Studies go onStudies go onThe COVID-19 pandemic has changed the world. But students are still... pandemic has changed the world. But students are still finding ways to continue learning at school. Read ……

clean the trucks, windows and floors. “It feels really great because you know you are helping people... out with friends, American boy Dean Miller was helping out at a fire department (部门) in Ohio.Dean ……

.Tian Yuan, 19, a sophomore at Guangxi University, has found it difficult to keep her dorm clean. Tian tried her best to learn to do chores and keep her place clean, but her roommates have different ……

in the US and picked up trash on April 17. The boy is famous for helping collect recyclables (可回... beaches, lakes and rivers since 2012. He has also taught thousands of his peers (同龄人) around the world ……

is designed to call for all taxi drivers in the city to keep their taxis clean and tidy.Thirty..., will be the longest railway built on highlands in the world.Model taxis runThe "Cleaning Taxi ……

. It is banned (禁止) in the country. It hopes to keep the country clean. Also, it is not OK to bring... good in most parts of the world. But in Iran, it can be rude. In South Korea, eating noodles loudly ……

clean so that others can enjoy it.Keep it funPicnics are a great time to have fun. So don.... Everyone lazes (闲散) around, helping themselves to food.However, choosing what to put in your basket can ……

(营养物) from different places, keep and reuse them, helping tiny plants and sea creatures grow..., keep and reuse them, helping tiny plants and sea creatures grow. The study allows scientists ……