◎ 兩詞均表示“機(jī)器”,但前者是可數(shù)名詞,后者是不可數(shù)名詞,可以說a machine,但不可說a machinery,two machineries,可以說a piece of machinery(一臺(tái)機(jī)器),two pieces of machinery(兩臺(tái)機(jī)器)。
They are now using new machineries.
They are now using new machinery.
他們現(xiàn)在使用新機(jī)器。
He doesn't know how to operate those machines. 他不知道如何操作那些機(jī)器。
Nowadays,most farm work is done by machinery. 現(xiàn)在,大部分農(nóng)活是由機(jī)器來完成的。
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比較類似的名詞:
poetry(詩歌),集體名詞,不可數(shù)
poem(詩),可數(shù)(a poem,two poems)
jewelry(珠寶),集體名詞,不可數(shù)
jewel(珠寶),可數(shù)(a jewel,two jewels)
weaponry(武器),集體名詞,不可數(shù)
weapon(武器),可數(shù)(a weapon,two weapons)
fiction(小說類),總稱,不可數(shù)
novel(小說),可數(shù)(a novel,two novels)