New Words：
disease [dɪˈziːz] n. 病;疾病
diseased [dɪˈzizd] adj. 有病的；患病的
Sample Sentences：
It is not known what causes the disease.
More than 400 people a year die of this disease.
The plant is diseased and will soon die.
We must cut away the diseased branches from the trees.
New Words：
loyalty [ˈlɔɪəlti] n. 忠诚；忠实
previous [ˈpriːviəs] adj. 先前的；以往的；上一个；前一个
Sample Sentences：
He has a heart of loyalty to the people.
He doesn't have to prove his loyalty to you.
This showed his love and loyalty to his motherland.
When did the previous train leave? 30 minutes ago.
What do you like and dislike about your previous job?
prove [pruːv] v. 证明;证实
New Words：
marriage [ˈmærɪdʒ] n. 婚姻；结婚
Sample Sentences：
She has two children by a previous marriage.
True marriage requires us to show trust and loyalty.
Stop worrying about their marriage ─ it isn't your problem.
previous [ˈpriːviəs] adj. 先前的；以往的；上一个；前一个
require [rɪˈkwaɪər] v. 需要
loyalty [ˈlɔɪəlti] n. 忠诚；忠实
New Words：
reduce [rɪˈduːs] v. 减少
Sample Sentences：
You must try your best to reduce weight.
The tyre is too hard reduce the pressure a bit.
The number of employees was reduced from 40 to 25.
New Words：
risk [rɪsk] n. 风险；危险
Sample Sentences：
He wanted to take no risks, however small.
Smoking can increase the risk of heart disease.
Giving up smoking reduces the risk of heart disease.
You have no right to take risks with other people's lives.
disease [dɪˈziːz] n. 病;疾病
reduce [rɪˈduːs] v. 减少