Chlormethine
氮芥
🗣️ 情景例句
Dad and I were planning to go to the game,
爸爸本来要和我一起去，
That was a close call.
太危险了。
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。