Tryptazan
[化] 吲唑氨丙酸
??? 情景例句
There are four of us including my parents, a younger sister and me.
有四口人，父母親、妹妹和我。
Why are you frustrated?
你為什么失敗？
One Monday, there were fewer people in the shop than usual when the woman came in,
有一個(gè)星期一，當(dāng)這位婦女走進(jìn)這家商場時(shí)，里面的人比往常少，