🧩 词语组成解析
boulder
['bəuldə]
n. 卵石，圆石;巨砾，冰砾;漂砾;
fern
[fə:n]
n. <植>羊齿植物，蕨类植物;
🗣️ 情景例句
Don't be lazy, the older you get, the harder it will be to learn.
别偷懒，年纪越大，学起来就越难。
What do you want to do after graduation?
你毕业后想干什么？
The idea of colonising Mars---- a world 160 times more distant than the Moon----
征服火星的计划-一个比月球远160倍的星球