but as the oceans have been overfished, fish has become more and more expensive.
但是随着海洋里的滥捕滥捞，鱼已经变得越来越昂贵。
新概念英语第二册
Lesson 90 What's for supper
📚 句中词汇解析
从本句中提取的重要词汇
adj. 昂贵的，花钱多的;豪华的;
💡 ex出+pens花费+ive形容词后缀→要花钱的→昂贵的
"The two liars asked for more expensive silk."
两个骗子索要了很多昂贵的丝绸。
近义：pricey, costly, dear
反义：inexpensive, knockdown, downscale, downmarket, cheaply
vi. 变为，成为;变得;变成;
vt. 适合，适宜;相称，相当;变成;发生;
💡 be(upon)+come→变为；成为(=to come upon）
"In a world that had suddenly become alien and dangerous, he was her only security."
在一个突然变得陌生而危险的世界里，他是她唯一的守护神。
近义：turn, wax, get, go, grow, suit
反义：remain, keep, stay, get
n. 鱼，鱼肉，鱼类;〈口〉（特殊的）人物，家伙，东西;[建]接合板，夹片，鱼尾板;[航]钓锚器，撑夹桅杆的加固夹箍;
vt.& vi. 捕鱼;钓鱼;摸出;掏出;
vt. 钓鱼，捕鱼;搜寻;[航]加夹箍夹牢;[工]用接合板连接[加固];
vi. 捕鱼，钓鱼;用钩捞取;
"Fish are abundant in the lake."
湖里鱼很多。
近义：angle, fishes