determine

/dɪˈtərmən/

establish after a calculation, investigation, experiment, survey, or study

中文释义：确定；决定；测定

The experiment aims to determine the effect of sunlight on plant growth.

该实验旨在确定阳光对植物生长的影响。

We need to determine the exact cause of the system failure.

我们需要确定系统故障的确切原因。