1. Their age can be determined by extrapolation from their growth rate. 它们的年龄可从其生长速度来推定。
2. Their success may be determined by a suit related to this issue, brought by the Mayo Clinic, which the Supreme court will hear in its next term. 他们能否成功可能取决于梅奥诊所提起的与这个问题相关的诉讼，最高法院将在下一次开庭期间审理此案。
3. Some warming is certain, but the degree will be determined by cycles involving melting ice, the oceans, water vapour, clouds and changes to vegetation and plants. 一定程度的气候变暖是确定无疑的，但其程度将由冰的融化、海洋、水蒸气、云和植物的变化等循环过程所决定。
4. The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface. 这次爆炸将大约100万亿吨的尘埃提升到大气中，这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
5. National policies should not be determined by outside influence. 国家政策的制定不该受外部影响。
