a.vail.a.bi.li.ty HE.veI7lE5bIl7I7ti, $-E7ti n [U] 可用性，可得性 The ready availability of guns has contributed to the escalating violence. 容易得到枪支使暴力事件越来越多。 Abortion rates are high because the availability of contraceptives is limited. 由于获得避孕药物用品受到限制，人工流产率很高。