副詞 punctually:

1. at the proper time
   同義詞：duly

1. Thank heavens the ship was late leaving! Had it left punctually, we should have missed it.
   謝天謝地，船開晚了！要是準(zhǔn)時開，我們就搭不上了。
2. The train leave punctually at18.00.
   火車準(zhǔn)時在１８點離開。
3. Please make every endeavour to arrive punctually.
   請盡量準(zhǔn)時到達。