connecting link

基本解释

According to me, meditation and medicine are two poles of the same science where the connecting link is still missing.
据我看来，静心和医学是同一种科学的两极，目前仍然没有连接起来。
osholovers.com
The connecting link between the material man and the spiritual man is the intellectual man, for the mind partakes of both the material and immaterial qualities.
在人的肉体和灵魂之间起连结作用的是心智（思想、意识——译注），因为心智既有部分物质性又有部分非物质性。
Trust is a feeling of life, is a noble sentiment, it is also a connecting link between people.
疑任是一种有死命的感到熏染，也是一种崇下的热忱，更是一种毗连人与人之间的纽带。

The normally reliable fast train link connecting London and Paris also has ground to a halt.

No one can provide a connecting link for the tragic events.
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One is a 3.7 mile link connecting two substations and the other is a 1.1 mile patch that will run along a public roadway to a substation.
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With easy access to Wi-Fi functions, the NX210 allows quick sharing with friends and family, whilst with Samsung Mobile Link users can show off their best images on phones and tablets, or on the big screen with TV Link connecting the NX210 wirelessly to internet-enabled TVs.
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