1.Scientists say insect milk could be a perfect non-dairy alternative to cow's milk.
alternative 替代品
New ways to treat arthritis may provide an alternative to painkillers.
治療關節炎的新方法可能會提供一種止痛藥的替代品 。
2.A single crystal of cockroach milk is estimated to contain more than three times the energy of an equivalent mass of dairy milk.
equivalent 相等物;等價物
Breathing such polluted air is the equivalent of smoking ten cigarettes a day.
呼吸污染這么嚴重的空氣等于每天抽十支煙