on sight片语

片语

1. 1

   一见到就、当场、立即

   Guards were ordered to shoot any intruder on sight.

   警卫接到命令，一见到入侵者就开枪。

2. 2

   一眼、一看便

   The manager knows all her regular customers on sight.

   经理一眼就能认出所有常客。