当日结束时美元汇率略有下降。
他的体重可能略有下降，但他还是吃很多。
There could be a slight decrease in his weight but he eats too much.
对于三岁的孩子来说，由于一些原因，他们的成绩并没有得到改善，只是因为改变而略有下降。
For three-year-olds, for reasons that are still in need of clarification, no improvement—rather a slight drop in performance resulted from the change.
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