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141. 积极 参与 be active in sth. take an active part in sth./doing sth. participate in sth./doing sth. 142. 关于年龄 at the age of Whats the age of sb.? the aged 老人 of ones age 同龄 in ones thirties 在某人三十几岁时 for ages=for years=for a long time under age成年 over age超龄 143. air词组汇总 on the air在传播 put on airs摆架子 in the open air 在野外，在露天 by air 144. 疼痛的表达 have a headache have backache have a toothache have a stomachache have a sore throat 145.如何牢记 learn sth. by heart remember sth. keep sth. in mind bear sth. in mind bear in mind that keep in mind that 146. 如此穿戴 put on sth. wear sth. have sth on. dress sb. be dressed in | 
