Sustained yield
持續產量, 保存率
?? 詞語組成解析
sustained
[s?s'teind]
adj. 持久的，持續的;
v. 維持( sustain的過去式和過去分詞 );支撐;忍受;長期保持;
yield
[jild]
vt. 屈服，投降;生產;獲利;不再反對;
vi. 放棄，屈服;生利;退讓，退位;
n. 產量，產額;投資的收益;屈服，擊穿;產品;
??? 情景例句
Lacks knowledge or experience.
知識匱乏或經驗不足。
No. I've been in California for the past month.
沒有，我剛到加利福尼亞去了一個月。
Oh, look! said Ann. What's that? She pointed at one of the things.
“看啊！”安說，“那是什么？”她指著一件展品問。