七年级
Promise yourself to be so strong that nothing can disturb1 your peace of mind....
Pete hated losing at anything. ...
Do you know International Day of Charity?...
Today is your day for action. Now is the time to do it....
If you are looking forward to a world where robots will do all the dirty and dange...
Look at this little girl. How cute she is! Do you know her? She is Ji Zihan, one of...
I love to wake to each new day And brush my dreams of night away And look out throu...
There’s a little groundhog Who lives in the ground. A little groundhog Who likes t...
Some blue whales living in the Pacific Ocean used to travel north toward Alaska eve...
电鳗主要生活在南美洲的河流中,它是鱼类中放电能力最强的淡水鱼。输出的电压高达600伏,因此电鳗有水中“高压线”之称。电鳗的放电主要是出于生存的需要。...