您要查找的是不是：
- Langhans rs stria 郎罕氏纹
- Langhan rs layer 细胞滋养层
- Langhans rs giant cells 郎罕氏巨细胞, 胎盘巨细胞
- Langhans rs layers 郎罕氏层
- Langhans rs cells 郎罕氏细胞
- placental Langhans rs layer 胎盘郎罕氏层
- The expedition suffered all the rigo(u)rs of a Canadian winter. 这支探险队饱受了加拿大严冬的折磨。
- Sale of goods which have been used by the selle rs. （八）销售的自己使用过的物品。
- The wood neighbo(u)rs upon the lake. 树林邻近湖。
- The robber rs hands were tied behind his back. 那个强盗被五花大绑捆起来。
- The dog rs fur was matted with blood. 那只狗的毛皮上沾有血迹。
- They waited for Owen rs arrival. 他们等待欧恩的到来。
- There rs no time like the present. 没有比现在更好的时机。
- Saturday rs difficult, I am afraid. 星期六恐怕有些困难。
- The baby is nursing at its mother rs breast. 小婴孩在母亲怀中吃奶。
- This job rs quite a sweat; I am exhausted already. 这件工作是个苦差事; 我已经精疲力竭了。
- Sweat poured from Martin rs face. 马丁脸上汗如雨下。
- He was a pioneer of china rs aerospace industry. 他是中国航天工业的拓荒者。
- On my way home I stopped at my aunt rs. 回家途中我顺便到姑妈那儿去了一会儿。
- Do not you think the radio rs a bit loud? 你觉得收音机的声音是不是太吵了点？
