These kinds of question often appear in the exam.
此类问题在考试中经常出现。
These kinds of questions often appear in the exam.
这几类问题在考试中经常出现。
The symptoms of the disease are silent and often appear many years after infection.
该病的症状是隐性的，通常在感染多年以后才显现出来。
The cracks often appear on the top of concrete floor slab.
现浇钢筋混凝土楼板面易产生裂缝。
These words often appear in major sites, newspapers, TV, radio.
这些字眼频繁地出现在各大网站、报纸、电视、广播中。
People often appear in the dream, most of them are out of reach.
经常在梦里出现的人，大多数都遥不可及。
People often appear in the dream, most of them are out of reach.
经常在梦里出现的人，大多数都遥不可及。
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