单词：sinkers
n. 下沉者（或物）；下坠球（sinker的复数形式）
n. a small ring-shaped friedcake
n. a weight that sinks (as to hold nets or fishing lines under water)
n. a pitch that curves downward rapidly as it approaches the plate
n. a weight that sinks (as to hold nets or fishing lines under water)
n. a pitch that curves downward rapidly as it approaches the plate