New words：
soil [sɔil] n. 土壤；土地；国土；领土
Sample Sentences：
He died on British soil.
That farm has a very rich soil.
She makes her living from the soil.
Some soils are not suitable for farming.
Press the soil flat with the back of a spade.
New words：
decade ['dekeid] n. 十年
Sample Sentences：
We've been married a decade.
Nine years plus one year equals a decade.
Prices have risen steadily during the past decade
It will be at least another decade before we know if he was right.
New words：
colleague ['kɔli:g] n. 同事；同行；同僚
Sample Sentences：
I had a colleague who died decades ago.
My colleague has broken off the habit of smoking.
We were friends and colleagues for more than 20 years.
decade ['dekeid] n. 十年
New words：
innocent ['inəsnt] adj. 无辜的；清白的；无罪的；无辜受害的；无知的, 天真纯洁的
Sample Sentences：
He insisted he was innocent.
He declared that he was innocent.
Don't be so innocent as to believe everything you hear.
New words：
jealous ['dʒeləs] adj.吃醋的；妒忌的；妒羡的；忌妒的
be jealous of 妒忌
Sample Sentences：
He was jealous of Tom's wealth.
He is jealous of his colleague's success.
Children often feel jealous when a new baby arrives.
Should I be jealous? There's nothing to be jealous of.
colleague ['kɔli:g] n. 同事；同行；同僚