drive sb.to do sth.
所以是:the forec(the gravity of the earth) drives them(waves) ...to restore the ocean ...
不定式短语的逻辑主语是后者:force(the gravity of the earth)
drive sb.to do sth.
所以是:the forec(the gravity of the earth) drives them(waves) ...to restore the ocean ...
不定式短语的逻辑主语是后者:force(the gravity of the earth)