New Words：
disappointed [ˌdɪsəˈpɔɪntɪd]
adj.失望的；沮丧的；失意的
v.“disappoint”的过去式和过去分词
disappointing [ˌdɪsəˈpɔɪntɪŋ]
adj.令人失望的；令人沮丧的；令人扫兴的
v.“disappoint”的现在分词
Sample Sentences：
I am very disappointed with you.
We were disappointed at the results.
He was disappointed to hear they were not coming.
He said in a disappointing voice.
Her exam result was disappointing but she tried to put a brave face on it.
New Words：
disappoint [ˌdɪsəˈpɔɪnt] v. 使失望；使破灭；使落空
Sample Sentences：
I don't want to disappoint you. I'll do my best.
I'm disappointed in you ─ I really thought I could trust you!
I promised to buy my son a new bicycle but I had to disappoint him.
New Words：
Antarctic [ænˈtɑːrktɪk] n. 南极
the Antarctic Pole n. 南极
the South Pole n. 南极
Sample Sentences：
It is well known that penguins live in the Antarctic.
The South Pole is one of the coldest areas on the earth.
New Words：
Arctic [ˈɑːrktɪk] n. 北极
the Arctic Pole [poʊl] n. 北极
the North Pole [poʊl] n. 北极
Sample Sentences：
Ice covers much of the Arctic Ocean.
The North Pole has no land, only thick ice.
New Words：
decorate [ˈdekəreɪt] v. 装饰；装点；装潢
decoration [ˌdekəˈreɪʃn] n. 装饰；装饰品
Sample Sentences：
We decorated the house for Christmas.
The cake was decorated to look like a car.
She put some decorations on the Christmas tree.
Paper cut has changed from decoration to a kind of art.