您要查找的是不是：
- Proliferation of cells in a ring around the feather germ creates a cylindrical depression, the follicle, at its base. 环绕羽芽有一圈细胞不断增生，在基部形成圆柱状凹陷，称为毛囊。
- In a pennaceous feather, the barbs grow helically around the tubular feather germ and fuse on one side to form the rachis.Simultaneously, new barb ridges form on the other side of the tube. 在正羽上，羽枝以螺旋形绕著管状的羽芽生长，在管子的一侧接合在一起形成羽轴，同时在管子的另一侧形成新的羽枝脊。
- Misfortune tests the sincerity of friends. [谚]患难识知交。
- A simple test will show if this is real gold. 简单的试验就能证明这是否是真金。
- A feather floated down on the wind. 一根羽毛随风飘落。
- The chicks will soon feather out. 小鸟就要长出羽毛来了。
- A feather, wing, fin, or similar appendage. 羽、翼或鳍状结构羽、翼、鳍或类似的悬着物
- The new grinding machine passed all tests. 这台新磨床通过了所有的试验。
- She danced, light as a feather, eyes shining. 她舞步轻快，两眼亮闪闪的。
- He went into illegal business to feather his nest. 他做非法生意以达到营私之目的。
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- Winning the medal was a feather in his cap. 获得奖章是他的荣誉。
- Winning the medal was a feather in his bonnet. 获得奖章是他的荣誉。
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- Medical tests showed that he was sterile. 医学检查表明他没有生育能力。
- It's just the germ of an idea, but something may come out of it. 这只是个初步的想法,但是也许能有所成就。
- feather germ 羽胚
- It will be wise to go over your test paper again. 还是把您的考卷再检查一遍的好。
- Bits of smoke began to feather out from the chimney. 一缕一缕的烟开始从烟囱里飞散出来。
- Let us show you to see the engine to test. 让我们指给你看要测试的发动机。
