/səˈsteɪn/
to provide enough of what sb/sth needs in order to live or exist 维持（生命、生存）SYC support
Which planets can sustain life?
哪些行星可以维持生命的存在？
The love and support of his family sustained him during his time in prison.
家人的关爱和支持帮助他度过了狱中的岁月。
The thought of seeing her again was all that sustained me.
This thought had sustained him throughout the years
to make sth continue for some time without becoming less 使保持；使稳定持续 SYN maintain
a period of sustained economic growth
a sustained attack
She managed to sustain everyone’s interest until the end of her speech.