这种表达主要用于口语,而不是书面语。
她有一台微波炉,但是主要用于解冻面包。
She has a microwave, but uses it mainly for defrosting bread.
它有超过1200亿的无资金准备的负债,主要用于员工医疗和退休费用。
It has more than 120 billion in unfunded liabilities, mostly for employee health and retirement costs.
What was neat about it is before that time, the predominant species to use for air conditioning or refrigeration was ammonia.
在这之前是很整洁的,之前最主要的用于空调或者冰箱的,物质是氨。
应用推荐