voluntary
US /ˈvɑ:lənteri/
・UK /ˈvɒləntri/
C1 高級英檢中級
adj.形容詞自願的：無償的：自發的
The work was voluntary, but many people came to help
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為什麼你可以合法地從一艘沉沒的船上偷東西 (Why You Can Legally Steal From a Sinking Ship)
06:55
- The second condition is "voluntary service," which is kind of a weird one; basically, anyone can be a salvor—a baby in an inner tube could be a salvor—but only if the baby volunteered.
第二個條件是 "自願服務"，這是一個有點奇怪的條件；基本上，任何人可以成為打撈者--在內胎中的嬰兒可以成為打撈者，但前提是嬰兒自願。
最危險的壟斷：當小心翼翼地殺人｜LearnLiberty (The most dangerous monopoly: When caution kills | LearnLiberty)
04:41
- Unlike a voluntary certification firm a monopoly
不同於自願性的認證公司
- the voluntary payments of its manufacturer or customers.
而非來自於生產商或消費者自願性的付款
為什麼還會有蟑螂存在？ (Why Do Cockroaches Even Exist?)
04:13
- So, the parasitic emerald wasp stings a cockroach and injects venom into a specific part of its brain which blocks voluntary movement.
扁頭泥蜂會透過蜂螫將毒液注射至蟑螂頭部的特定部位，該毒液會使腦部短暫麻痺，也因此可短暫控制蟑螂的行動。
什麼是遊戲？Crash Course Games #1 (What is a Game?: Crash Course Games #1)
10:18
- Voluntary participation is essential, otherwise it's work. I'd also like to get at why we play games,
「自願參與」是很重要的元素，否則這就是「工作」了。我們也要探究「為什麼」我們玩遊戲
擁有和經營 (Owned & Operated)
46:07
- It's a voluntary social movement. A grassroots social movement
而這個社群正嘗試帶來嶄新的永續發展思路