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内容包括：1. 表示理解；
2. 提出建议。
注意：1. 词数100左右； 2. 可以适当增加细节，以使行文连贯。
| Dear Li Hua, My roommates at my dorm isolate (孤立) me all the time. They have their own group chat and never talk to me. We have never had any real conflicts (冲突). I don’t know whether it’s because of different hobbies or my personality. Should I do something to change the situation? Jiujiu |
Dear Jiujiu,
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Best wishes,
Li Hua
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
