世界粮食储存量一直在下降，到目前为止，粮食存储量已经降到34年来的最低点。

We have been pulling down world grain stocks until now they are at the lowest level in 34 years.

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到目前为止，这一数字在全球各大经济体中比例最低(即使在当今梦游的美国经济中，这一数字也达到了的70%)。

That figure is by far the lowest percentage for any big economy anywhere in the world. (Even in the sleepwalking American economy, the level is about 70 percent of G.D.P.)

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到目前为止，那些科学家并没有在动物或人体中研究这些基因，但是如果这些研究发现是适用于人体，它可能有助于医生确定病患需要的最低化疗剂量。

So far, the scientists haven't studied the genes in animals or people. But if the findings apply to people, it may help doctors determine the lowest chemo dose that patients require.

youdao

到目前为止，那些科学家并没有在动物或人体中研究这些基因，但是如果这些研究发现是适用于人体，它可能有助于医生确定病患需要的最低化疗剂量。

So far, the scientists haven't studied the genes in animals or people. But if the findings apply to people, it may help doctors determine the lowest chemo dose that patients require.

youdao