いつでも の訳語→ always anytime consistently constantly frequently invariably just never readily
しっかりと の訳語→ bravely close determinedly fastly firmly jealously right robust solid solidly tight tightly
ずっと の訳語→ absurdly all considerably ever far fine long lot more much nonstop rest surely totally very way well whole
たえず の訳語→ ceaselessly constant continually endless endlessly forever incessantly perpetual
永続的に の訳語→ durably enduringly