to secure something so it cannot change
何かを変更できないように確保する (nanika o henkou dekinai you ni kakuho suru)
"Let's lock in the reservation before the price goes up."
"価格が上がる前に予約を確保しよう。" (kakaku ga agaru mae ni yoyaku o kakuho shiyou)
a sudden and significant progress
to be in a strong position to control or influence a situati...
to be in a position of leadership or power
to choose to participate
something that is expected to happen soon
Having information that most people do not have.
