The dentist did not return the smile.He brought the basin of sterilized instruments to the worktable and took them out of the water with a pair of cold tweezers, still without hurrying.

• 他端来了那个装着已消毒器械的盆子放到工作台上，用冷镊子把器械从水中夹出来，依旧不慌不忙。