然而MMF对于原发及次发性肾丝球肾炎的疗效，则有待进一步的探讨。

The effect of MMF on primary and secondary glomerulonephritis, however, remains to be tested.

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绒球，丝球一簇或一团毛、羽毛或其它材料，尤用于鞋、帽和窗帘等的装饰物。

A tuft or ball of wool, feathers, or other material used as a decoration, especially on shoes, caps, and curtains.

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修剪得整整齐齐的也能看上去很职业，不过在修剪的时候你必须一丝不苟，否则你的下巴就会像长了一个钢丝球。

A well-groomed beard can look just as professional, but you have to be meticulous about keeping it trimmed or you risk looking like your chin is growing a Brillo pad.

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