如果他现在退课，往好了说，他也只能得个未完成成绩。

If he drops the course now, ___at ___best he'll get an incomplete grade.

对于那些没有家庭支持的人来说，往最好处想，他们的归宿就是政府经营的护理机构。

For those without family support, ___at ___best they end up in a state-run care facility.

这款便宜手机不可靠；往最好了说，它或许能用上一年。

This cheap phone is unreliable; ___at ___best it might last you a year.