Euchromocenter
常染色中心
🗣️ 情景例句
Because my birthday is tomorrow.
因为明天是我的生日。
That was a lousy movie.
那电影糟透了！
But when the train dawdled at station after station, I began to wonder,
但是，当火车一站接着一站往前蠕动时，我便产生了怀疑。