■ seasonable 与 seasonal

前者表示“合乎时令”、“合乎季节”。

• Snowy weather is seasonable here in January.这里一月份的下雪天气是合乎时令的。

后者则表示“季节性的”（非常年的）。

• seasonal workers季节工人
• seasonal allergies季节性过敏
• seasonal adjustments扣除季节性因素的调整。

• street
• strength
• strew
• strike
• struggle
• student of
• study
• stuff
• stupid
• sturdy
• subject
• subscribe
• substance
• substitute
• substitute 与 replace
• succeed
• success
• successful
• successful 与 successive
• successive
• such
• such
• suggest
• suggestion
• suitable