run low

基本解释

Due in part to increased human consumption of krill as fish stocks run low, blue whale numbers are only 3% of what they were in the 1800s.
随着鱼类资源的减少，人类对磷虾的消费有所增加，这在某种程度上造成了蓝鲸数目的锐减，目前的数目仅为19世纪时的3%。
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Unlike plug-in hybrids such as GM's Voltwhich also offer zero-emission driving -- though at a far more limited range --Leaf drivers can't just stop at a gas station if they run low on battery power.
与插拔式混合车不同，如同样提供零排放驾驶的通用公司的Volt车型（虽然它一次充电可行驶的距离更加有限），如果电池电力不足时，Leaf车型的驾驶员可不能去加油站充电。
When a cell has high levels of testosterone, RORA levels run low, which affects every gene that RORA is supposed to turn on.
当一个细胞的睾酮水平较高时，RORA基因水平就低，这就影响到RORA基因应该打开的每一个基因。

Some fear that supplies will begin to run low, causing prices to jump.
These low mountains are cut by some valleys that sort of run east-west ; you will see one there, the Valley of Jezreel, in particular; that was a particularly fertile valley.
那些矮小的山丘被东西走向的山谷截断,你在这里会看到一个耶斯列山谷;,这是一个富饶肥沃的山谷。
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They burned the captured supplies. Then they moved a few kilometers away to a long, low hill just northwest of the Bull Run battleground, where southern forces defeated a northern army a year before.

The new paid search systems direct traffic to other in-stock products when supplies run low.
FORBES: Improved Paid Search Ads Spurring Growth In E-Commerce