您要查找的是不是：
- outside annular concave 环形外侧凹
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
- The busy road outside the school is a menace. 学校外面那条车水马龙的大道是个危险之地。
- An indented or concave surface or area. 凹陷，洼地凹的表面或地区
- He is gunned down in the street outside his office. 他在他办公室外的街上被枪杀。
- It's my idea to hold the party outside the house. 在户外聚会是我的主意。
- The trees outside the window blocked off the sun. 窗外的树木挡住了阳光。
- Do you think sexual act outside marriage is wrong? 你认为婚外性行为是不对的吗？
- It is too dark outside to allow of walking. 外面太黑了，不能出去散步。
- It was reported that there would be an annular eclipse tomorrow. 据报道说，明天有日环食。
- The army encamped outside the walls. 军队在城墙外面扎下了营。
- We'll need outside help before we can finish. 我们需要外界援助才能完成。
- The little boy asked his papa to take him outside. 小男孩让爸爸带他出去。
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
- Most professors unbend outside the lecture theatre. 教授在课下大都很随便。
- Birds sang/were singing away happily outside. 小鸟在外面愉快地唱个不停。
- The house was painted green outside. 这房子外部漆成绿色。
- I'll meet you outside the science lab. 我在科学实验室外面见你。
- Don't go outside the school playground. 不要到学校运动场以外的地方去。
