🧩 词语组成解析
🗣️ 情景例句
Yes. About four years ago.
是的 ，大约四年前走的。
They had to call in a heart specialist.
他不得不请一位心脏病专家。
It is well known that where the white man has invaded a primitive culture,
众所周知，凡是白人侵入原始文化的地方，