Move the pots outside when the seeds begin to sprout.种子开始发芽时把盆搬到外面去。Seeds begin to burgeon at the commencement of spring.春天开始时种子开始发芽。When the first birches budded up in the glens, she could no longer be kept inside the house.当峡谷里第一批白桦开始发芽时，谁也无法再让她待在屋子里了。