重点讲解：
1. be made up of （由…）构成的；（由…）制成的；
Common salt is made up of 40% sodium and 60% chloride.
食盐由40%的钠和60%的氯化物构成6fu9fH9gS0。
2. come up with 想出，提出(计划、想法等)；
The president was moved to come up with these suggestions after the hearings.
听证会促使总统想出了这些建议q7)yb)HDa(。
3. even though 即使；尽管；纵然；
He's the best teacher, even though he has the least experience.
他虽然经验最少，却是最出色的老师0f=,4S45Z0j。
4. come across 使产生…印象；给人以…的印象；
When sober he can come across as an extremely pleasant and charming young man.
没喝醉的时候，他看上去似乎是个极为彬彬有礼、讨人喜欢的小伙子izRqPpzWQGL。