n.[植]苦艾；苦惱
Beside a bush of gray wormwood, the footprints of an animal were clearly visible. 一叢灰白色的苦艾旁，沙地上留有一行清晰的野獸走過(guò)的痕跡。
Your words must be gall and wormwood to him. 你的話在他聽(tīng)來(lái)一定逆耳。
