(noun.) something that interests you because it is important or affects you; 'the safety of the ship is the captain's concern'.
(noun.) something or someone that causes anxiety; a source of unhappiness; 'New York traffic is a constant concern'; 'it's a major worry'.
(noun.) a feeling of sympathy for someone or something; 'She felt strong concern for those less fortunate'.
(noun.) an anxious feeling; 'care had aged him'; 'they hushed it up out of fear of public reaction'.
(verb.) be on the mind of; 'I worry about the second Germanic consonant shift'.
校对:尼古拉斯
汉密尔顿校对