Self-built
自建（self-build的過去式和過去分詞）
?? 詞語組成解析
self
[self]
n. 自己;本人;本性;私利;
adj. 同一的;純凈的;單一的;
vt. 使自花授精;使近親繁殖;
vi. 自花授精;
built
[[bilt]]
build的過去式和過去分詞
??? 情景例句
He always seems such a happy guy.
他似乎永遠是個快樂的人。
I graduated from Yale University 5 years ago.
五年前，我從耶魯大學畢業。
Whenever Arthur was angry, he would walk out of the room.
阿瑟生氣時，就會出去。