When you're lifting weights, I think your muscles get a better workout if you do a bit more.
It's better to heat things up a little longer when you're using your microwave.
この場合、次のような言い方ができますよ。
ーWhen you're lifting weights, I think your muscles get a better workout if you do a bit more.
「筋トレする時、少し多めにするともっと効くよ」
ーIt's better to heat things up a little longer when you're using your microwave.
「電子レンジを使う時、少し長めに温めるといいよ」
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