可变

The weather in this region is variable, with unpredictable changes in temperature and precipitation.
这个地区的天气多变，温度和降水量变化莫测。
Her mood swings were so variable that it was hard to keep up with her.
她的情绪波动如此之大，让人难以跟上她的节奏。
The company's profits have been variable over the past few years due to market fluctuations.
由于市场波动，这家公司过去几年的利润波动不定。
The quality of the service provided by the restaurant was variable, with some meals being excellent and others mediocre.
餐馆提供的服务质量参差不齐，有的饭菜非常出色，有的则平庸。
The stock prices of the company are quite variable, making it risky for investors.
这家公司的股票价格波动很大，对于投资者来说风险较高。
The number of attendees at the event was variable, depending on the day of the week and the weather.
参加活动的人数多变，取决于周几以及天气状况。
The results of the experiment were variable, suggesting that more testing might be needed.
实验的结果多变，这表明可能需要更多的测试。
The performance of the student was variable, sometimes showing great improvement and other times struggling.
学生的表现多变，有时进步明显，有时则表现不佳。
The speed of the internet connection was variable, causing frustration for users.
网络连接速度多变，给用户带来了挫败感。
The prices of the products in the store were variable, with discounts offered during sales periods.
店里商品的价格多变，在促销期间会提供折扣。