The vowel in words like "my" and "thigh" is not very difficult.单词my和thigh中的元音并不难发。Each language has a different vowel system.每种语言都有不同的元音系统。A long vowel is a long sound as in the word'shoe ".长元音即如“shoe ” 一词中的长音....
Alex clenched her fists and gritted her teeth.亚历克丝攥紧拳头，牙咬得咯咯响。He gritted his teeth and plunged into the cold weather.他咬咬牙,冲向寒冷的天气.The rest of the group shouldered their bags, gritted their teeth and set off.那群人中其余的人扛起包，咬...
The length of a sperm whale's tooth is 20 cm.长度的一抹香鲸的牙齿是20厘米.From the body, the sperm whale is smaller than the killer whale.从体形上看, 抹香鲸比虎鲸要小.The sperm whale has about thirty teeth in its lower jaw.在抹香鲸的下颚上大约有30颗牙齿....
把书摆正,使其整齐美观.Square up the books to make them look neat.墙上那幅画挂歪了,我必须把它摆正.That picture on the wall is crooked - I must put It'straight.把画摆正,现在是歪的.Put the picture right -- it's not straight....