1 alienate vt. 使疏远,离间；2 alleviate v. 缓和，减轻；3 allocate vt. 分派,分配；4 alternate vt.使交替 a.交替的；5 amalgamate v. 合并，混合；6 ameliorate vt. 改善；缓和；7 amputate v. 切除.