名詞 charlock:

1. weedy Eurasian plant often a pest in grain fields
   同義詞：field mustard, wild mustard, chadlock, Brassica kaber, Sinapis arvensis

char.lock

n.（名詞）
An annual weed(Sinapis arvensis) in the mustard family, native to Eurasia and naturalized in North America, having racemes of yellow flowers and hairy stems and foliage.
田芥菜：十字花科中一種一年生的植物（田野白芥屬） ，原生長(zhǎng)于歐亞大陸，后被移植到北美洲，有開(kāi)黃花的總狀花序和帶絨毛的莖和葉

來(lái)源：
Middle English cherlok
中古英語(yǔ) cherlok
from Old English cerlic
源自 古英語(yǔ) cerlic