当你全职受雇于公司的时间达到了一年之后，公司通常每年给你10至20天的带薪假期。

Companies usually offer their staff between 10 and 20 days of paid holiday each year after you have completed one year of full-time employment.

科学家还认为，这种药草有比其他植物多10至20倍的褪黑激素：它是一种可能抑制癌细胞增长的抗氧化剂。

The scientists also report that this herb has 10 to 20 times more melatonin -- an antioxidant that may inhibit cancer growth -- than any other fruit or vegetable tested.