二百五十多年前的惠更斯目镜今天还在广泛使用.The Huygens ocular , which dates back over 250 years is still in wide use today.此时场镜上的划痕和小点会在接目镜中看见.Then the scratches and spots on the field lens would be visible at the eye lens.在这两种仪器中, 物镜所成的象都是通...
The flame is a quasi-religious emblem of immortality.火焰可以算作不朽的宗教象征。Her shirt has the company emblem on it.她的衬衫印有公司的标记.The eagle was an emblem of strength and courage.鹰是力量和勇气的象征。...
In a few days time the sprouts will be ready to eat.再过几天球芽甘蓝就可以吃了。Bean sprouts are also sold in cans.也有罐装豆芽出售。The wheat sprouts grew perceptibly after the rain.下了一场雨,麦苗立刻见长....
Jeff had shopped extravagantly for presents for the whole family.杰夫花了很多钱为全家人买礼物。What Jeff did was to anticipate my next question...杰夫预先回答了我的下一个问题。Jeff: Of course, they have strange appearances, such as duckbill , millie,...