rely

To depend on someone or something with confidence; to trust that someone or something will do what is needed.

• reliance/rɪˈlaɪəns/(n)依赖；信任
• reliable/rɪˈlaɪəbəl/(adj)可靠的
• reliability/rɪˌlaɪəˈbɪlɪti/(n)可靠性

• rely on
• heavily rely on
• rely too much on
• rely entirely on
• rely on someone to
• cannot rely on

1. 1.The supply chain relies heavily on a single overseas manufacturer, which creates significant vulnerability.
2. 2.You can rely on her to deliver under pressure — she has never missed a critical deadline.

• depend on /dɪˈpend ɒn/ (need for support)
• count on /kaʊnt ɒn/ (trust to do something)
• bank on /bæŋk ɒn/ (feel confident about — informal)

from Old French "relier," from Latin "religare" (to bind back)