✅ 同义词
🗣️ 情景例句
Yes, but Dr. Lee's schedule is full for today. How about 9:00 tonight?
可以，不过李医生今天的时间排满了。今晚9点好吗？
Self-confidence is the first requisite to human greatness.
人类的伟大，首要的是要有自信。
may have left an automatic messenger behind to await the possible awakening of an advanced civilization.
很可能会在离开太阳系时留下自动化信息装置，等待先进文明的觉醒。