点击下方单词,选择对的这个单词
1. a pulley-block at the head of a topmast
Synonym: bullock block
2. one of the two male reproductive glands that produce spermatozoa and secrete androgens
e.g. she kicked him in the balls and got away
Synonym: testistesticleorchisballballocknutegg
多通过句子记忆单词，而不是单独死记硬背。
