hardy annual

1 annual plant strong enough to be grown in the open air 耐寒的一年生植物. 2 (fig joc 比喻, 谑) subject that is mentioned or discussed regularly 周期性地提出来的老问题.

hard-working, hardback, hardbitten, hardboard, harden, hardened, hardheaded, hardiness, hardly, hardly any, hardly ever, hardly...before/when, hardly...when, hardly...when..., hardness, hardship, hardware, hardwood, hardworking, hardy, hare, hare-brained, harebell, harebrained, harelip, harem, haricot, hark, harlequin, harlequinade, harlot, harm, harmful, harmfully, harmless, harmlessly, harmlessness, harmonic, harmonica, harmonious,