row upon row (of houses, buildings, etc.)

to work or travel in the open regardless of the weather; braving the elements and enduring hardships

lined up close (like teeth of a comb)

to work unceasingly regardless of the weather

comb jellies (Ctenophora)

a type of summer squash, also known as courgette or baby marrow

Farrer's scallop (Chlamys farreri), also known as Chinese scallop