maintain
/meɪnˈteɪn/
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v. 維持；保養；堅稱
- It is hard to maintain good grades while playing on the school team. 要一邊參加校隊一邊維持好成績很不容易。
其他意思
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v. 維持, 保持, 維修, 主張
If you maintain something, you continue to have it, and do not let it stop or grow weaker.
- The Department maintains many close contacts with the chemical industry
也出現在：
字根
man, manu, mani, main 手
main + tain手 + 握住
ten, tin, tain 握住、保持
main + tain手 + 握住