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- Crataegus fruit extract strengthens the contraction of heart / cardiac muscles in toad and prolongs contraction both in vivo and ex vivo. It also lowers heart rate. 山楂提取物对在体、离体蟾蜍心脏均能增强心肌收缩力，持续时间较长。山楂尚能减慢心律。
- Any of several glycosides obtained chiefly from plant sources such as the foxglove, used medicinally to increase the force of contraction of heart muscle and to regulate heartbeats. 心脏糖苷：糖苷中的任一种，主要来源于植物，如毛地黄，用作医药增强心肌收缩的力量并调节心跳
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- "I'll" is a contraction of "I will". “I'll”是“I will”的缩写。
- How many ventricles of heart does a man have? 每个人有几个心室？
- The contraction of muscle is a reaction of the body. 肌肉的收缩是人体的一种反应。
- Chest pains may be symptomatic of heart disease. 胸痛可能是心脏病的症状。
- His kindness of heart endeared him to all. 他的仁慈心肠使他为大家所喜爱。
- Smoking is one of the causes of heart disease. 吸烟是引起心脏病的一种病因。
- Kiss is the contraction of mouth due to the expansion of the heart. 物理学教授接吻是由于心的膨胀造成嘴的收缩。
- There's a high incidence of heart disease there. 那个地方心脏病的发病率很高。
- Her hardness of heart disappointed him. 她冷酷的心使他失望。
- "I'm" is a contraction of "I am". "I'm"是"I am"的缩写。
- The word "sib" is a contraction of "sibling". “同胞”是“同胞兄弟”的简称。
- Contraction of the timbers left gaps in the fence. 木料收缩, 结果围墙露出缝来。
- "Won't" is a contraction of "will not". "won't"是"will not"的缩短形。
- "O'clock" is a contraction of "of the clock". “O'clock”是“of the clock”的一种缩写形式。
- The word "sib" is a contraction of " sibling ". “同胞”是“同胞兄弟”的简称。
- He hid a knave of hearts in his pocket. 他把一张红桃J 藏在口袋里。
- Cold weather causes a contraction of two inches in the bridge. 寒冷的天气会使这座桥缩短两英寸。
