in force

有效，实施中

in debt, in debt to sb., in detail, in difficulties, in difficulty ties, in doing so, in due course, in effect, in error, in essence, in every way, in excess of, in exchange for, in extremis, in face of, in fact, in faith, in favor of, in favour of, in focus, in front of, in full, in full charge, in full swing, in future, in general, in good health, in half, in hand, in haste, in hiding, in high spirits, in honor of, in honour of, in itself, in large measure, in light of, in line, in line with, in loco parentis,