1、可数。
2、指各种各样的实践、做法。
3、以下是权威例句：It must prevent underwriting practices that inflate the housing bubble that ultimately deflated the economy. WHITEHOUSE: VP Biden on Economic Expansion for the Middle ClassIn the grasslands, intensified agricultural practices have hurt bird populations, according to the report. CNN: Many bird populations in trouble, report saysOver 90% of food in sub-Saharan Africa, for example, is produced using customary farming practices. UNCTAD: Press Office。
