When investigating the pH (acidic, neutral, alkaline) of a liquid, don't soak the litmus paper completely in the liquid but just put the end of the paper in it.
排卵の有無を調べる方法はありますか?
Is there some way to check for ovulation?
調べを進めるうちに、頭蓋骨が、何か重い一撃を受けて打ち砕かれているのが明らかになった。
Closer examination revealed that the skull had been crushed by some heavy blow.
It is important that a lawyer should leave no stone unturned even on minor points and harp on the same subject to achieve a break through in an impasse.
彼女は自分の名前があるかどうか名簿を調べた。
She went over the list to see if her name was there.
彼女は会社の業績を丹念に調べた。
She investigated the company's output record carefully.