英语词汇“be at pains to do sth”的读音、翻译、释义、用法及例句-智慧网

词汇	be at pains to do sth
释义	be at pains to do sthbe at pains to do sth1.■下苦功; 花大力气She was at great pains to stress the advantages of the new system.她极力强调新制度的优点。
随便看	spermia spermiation spermiaucal glands spermic spermicidal spermicide spermidine spermidium spermiduct spermin spermine spermine synthase spermiogenesis spermiogram spermioteleosis spermism spermist spermium sperm mother cell sperm motility sperm nest spermnucleus sperm nucleus spermoblast spermocarp

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