感: Ⅰ动词1.(觉得) feel; sense 短语和例子身体略感不适 not to feel very well; be under the weather; be out of sorts; 我深感力不从心。 i feel keenly that my ability falls short of my wishes.2.(怀有谢意) be grateful; be obl
提高效率: increase efficiencyincrease of efficiencyspeedupto improve efficiency