1.polio 小兒麻痹癥
He failed many times but he finally broke through to find a successful polio vaccine.
他失敗了許多次,但終于發現了有效的預防小兒麻痹癥的疫苗。
2.crutch 拐杖
Religion was her crutch in times of sorrow.
宗教是她憂傷時依賴的支柱。
3.bar 小節(音樂)
4.orchestra 管弦樂隊
The orchestra has several concert engagements.
這管弦樂隊已安排好幾場音樂會。
5.boastfully 自負地,夸耀地