The initial amount is just 2,000 RMB, but we can go up to 100,000 RMB.

贷款起点额度只有2000元，而我们可以最多贷出100000元。

Since the final amount is just the initial amount plus any changes that have occurred, this line is the sum of the initial line and the change line.

由于最终金额只是初始金额加上已发生的任何更改，因此此行是初始行和更改行的总和。

After that, about 67% is reabsorbed in the proximal convoluted tubule, and an additional 20% is reabsorbed in the thick ascending limb, and that leaves about 13% of the initial amount, right?

之后，其中大概67%在近曲小管被重吸收，另外还有20%在粗支升段被重吸收，所以只剩下了原始量的13%，对吧。

That leaves 13% of the initial amount, and at this point the distal tubule and collecting ducts of the nephron can either reabsorb or secrete potassium depending on what the body needs.

余下原始量的13%，此时肾单位的远曲小管和集合管，依据机体的需要，或重吸收，或分泌出钾。