无疑地， 确定地...

Some soils are actually too alkaline for certain plant life.有些土壤其实碱性过强，不利于某些植物生长。Hill had to find out for certain.希尔得弄个清楚。The courts were empowered to impose the death sentence for certain crimes.法院有权因某些罪行判处罪犯死刑。...

for certain的音标：for certain的英式发音音标为：[fɔ: 'sə:tn]for certain的美式发音音标为：[fɔr 'sɚtn]...