1. exploration
The exploration of space is the ultimate goal of NASA.
From the standpoint of ecology, Antarctica should be reserved solely for research, not for tourism or for commercial exploration.
The launching of artificial earth satellites is commonly looked upon as an exploration of space.
Japan will soon start to engage in the exploration of the universe.
Is it necessary to expand human knowledge with space exploration?
英語 "という言葉badanie odkrywanie"(exploration)集合で発生します。
vocabulary 2