🧩 词语组成解析
pine
[pain]
n. 松树;松木;凤梨，菠萝;
vi. 憔悴;痛苦;渴望;
vt. 为…悲哀;哀悼;消瘦;渴望，渴慕;
adj. 似松的;松木的;
fern
[fə:n]
n. <植>羊齿植物，蕨类植物;
🗣️ 情景例句
Are you involved in any extra-curricular activities on campus?
你在学校参加过任何课外活动吗？
I've spoken English all my life.
我一辈子说英语。
His previous attempts had been unsuccessful.
他以前的尝试没有成功。