您要查找的是不是：
- The emery is a hard metallic substance. 金刚砂是非常坚硬的金属物质。
- Barium sulfate is a radiopaque substance. 钡硫酸盐是一种辐射光不能穿透的物质。
- Musk is a kind of strong-smelling substance. 麝香是一种有强烈气味的物质。
- Graphite is a soft black substance. 石墨是一种软而黑的物质。
- Random mating within a breeding population. 自由交配在一个育种群中自由交配
- This substance is soluble in alcohol. 这种物质能够溶解在酒精中。
- The widow mourned for her dead mate. 那寡妇为她已故的丈夫服丧。
- Her account was in substance correct. 她的账目基本上是对的。
- Many animals mate in the spring. 许多动物在春天交配。
- Ammonia is a chemical substance. 氨是种化学物质。
- The first mate was studying to become a master. 大副正在学习准备当船长。
- The substance is irritable to sensitive skin. 这种物质对敏感的皮肤有刺激性。
- Pandas rarely mate (with each other) in captivity. 猫熊在豢养环境中很少(彼此)交配。
- An inert substance used to dilute. 稀释剂一种惰性物质
- The monkey scratched about in its mate's fur for fleas. 那只猴子在另一只猴子身上找跳蚤。
- The blackbird sat on the nest waiting for the return of her mate. 黑鹂在巢中等候其雄鸟归来。
- The question was never discussed in substance. 这问题实际上从来没有讨论过。
- Gelatin is a clear tasteless substance. 明胶是一种透明无味的物质。
- Mating blackbirds will defend their territory against intruders. 黑鹂交配时不容许地盘受到外来的滋扰。
- This substance is extracted from seaweed. 这种物质是从海藻中提取的。
