如何使用 "envelope" 造句

1. Inside the empty envelope propped up against a cup .
紧靠在杯子旁的那个空空的信封里面。
2. Anyway , he opens the envelope addressed to the new doctor and reads
总之,他拆开了那封写给新大夫的信,并读到了以下的句子:
3. The outer envelope of all four sections contains air maintained at atmospheric pressure .
四部分的外层封皮充满空气用来保持与大气的压力相协调。
4. Use her favorite color envelope .
要用她最喜爱的彩色信封。
5. The envelope could contain every secret she 's ever had .
那个信封里没准包含了她所有的秘密。