Infant mortality is a highly sensitive barometer of socio-economic conditions.婴儿死亡率是能够充分反映社会经济状况的高敏感度指标。This condition decreases sexual desire and responsiveness.这种情况会降低性欲和性敏感度。His forceful personality concealed his weak leadership and poor political acumen.他个性坚强，掩盖了他在领导才能和政治敏感度方面的不足。