She was rather imprecise about the cost of the trip.
她差旅不太。
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The 30% to 99% range that the researchers posit for the amount of Martian water stored in the ground is admittedly imprecise—and will likely narrow definitively only when humans can collect fresh samples and study them up close.
诚然,研究员假设 30% 到 99% 火星地下水储范围是不精确——只有当类能够收集新鲜样本并对其进行近距离研究时, 这一范围才可能最终缩小。