在田野里牧放的牛: cattle put out to grass ie put in a field to eat the grass
亲自: personally; in person; oneself 短语和例子亲自参加 take part in person; 亲自动手 personally take a hand in the work; do the job oneself; 亲自送行 see sb. off personally; 亲自迎接 grace sb. personally; 亲自抓这项工作 a