cover one's bases

idiomatic

(idiomatic) To be thorough; to prepare thoroughly or completely.

Japanese Meaning

念入りに準備する / あらゆる可能性に備える / 徹底的に備える

製品の発売を計画する際には、予備の資料を用意し、スケジュールを確認し、すべての機器をテストして万全を期すことが賢明だ。

Sense（1）

(idiomatic) To be thorough; to prepare thoroughly or completely.

She eats a balanced diet, but takes vitamin pills anyway, to cover her bases.

covers one's bases

（ present singular third-person ）

covering one's bases

（ participle present ）

covered one's bases

（ participle past ）

covered one's bases

（ past ）