hard and fast造句31) We must make it a hard and fast rule against smoking in the office.
32) General Jackson faced three large Union forces in and around the Shenandoah Valley. Yet he struck hard and fast, and soon had control of the valley's main towns.
33) Use this advantage to hard and fast one tank at a time.
34) A common way that penile fracture happens, Montague says, is when a man is thrusting too hard and fast during sex, and slams into his partner's pubic bone.
35) There are no hard and fast rules about the age a child can start self-care safely.