1. Body temperature can fluctuate if you are ill. 如果你病了，体温会波动。
2. The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm. 分析表明，强度似乎以一种清晰的、明确的节奏在波动。
3. Later on in the early years of the nineteenth century, when Fort Vancouver became the headquarters of the Hudson's Bay Company, deer populations continued to fluctuate. 后来，在19世纪初，当温哥华堡成为哈德逊湾公司的总部时，鹿的数量继续波动。
4. Prices fluctuate, in response to harvests, natural disasters and political instability; and when they rise, it takes some time before new sources of supply become available. 价格会随着收成、自然灾害和政治不稳定而波动；当价格上涨时，需要一段时间才能找到新的供应来源。
5. My mood seems to fluctuate from day to day. 我的情绪似乎天天在变。
