🧩 词语组成解析
polymeric
[[ˌpɔli'merik]]
a. 聚合的, 聚合体的\\n[医] 聚合的
amide
[['æmaid]]
n. 氨化物, 酰胺\\n[化] 酰胺
🗣️ 情景例句
That's always nice to hear, Mr. Marchetta.
听到这事总是好的， Marchetta先生。
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
If the feeding place was away from the sun, the straight part of the wagging dance pointed downward.
如果喂食地点向着太阳，跳舞的蜜蜂在跳摇摆舞时直线部分就一直向上。